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64372692384 = 253375111331
BaseRepresentation
bin111011111100111010…
…010101010110100000
320011011020120121001000
4323330322111112200
52023313402124014
645323350112000
74436133600000
oct737472252640
9204136517030
1064372692384
1125333785620
121058634b600
1360bb64b830
143189500000
151a1b595509
hexefce955a0

64372692384 has 1152 divisors, whose sum is σ = 265639772160. Its totient is φ = 14936140800.

The previous prime is 64372692383. The next prime is 64372692403. The reversal of 64372692384 is 48329627346.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 64372692384.

It is not an unprimeable number, because it can be changed into a prime (64372692383) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2076538449 + ... + 2076538479.

It is an arithmetic number, because the mean of its divisors is an integer number (230590080).

Almost surely, 264372692384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64372692384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132819886080).

64372692384 is an abundant number, since it is smaller than the sum of its proper divisors (201267079776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64372692384 is a wasteful number, since it uses less digits than its factorization.

64372692384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 67 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 64372692384 in words is "sixty-four billion, three hundred seventy-two million, six hundred ninety-two thousand, three hundred eighty-four".