64740359376 has 360 divisors, whose sum is σ = 238447800864. Its totient is φ = 16815133440.

The previous prime is 64740359363. The next prime is 64740359401. The reversal of 64740359376 is 67395304746.

It is a happy number.

64740359376 is a `hidden beast` number, since 6 + 4 + 7 + 40 + 3 + 593 + 7 + 6 = 666.

It is a super-2 number, since 2×64740359376² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2080186 + ... + 2111078.

Almost surely, 2^64740359376 is an apocalyptic number.

64740359376 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64740359376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119223900432).

64740359376 is an abundant number, since it is smaller than the sum of its proper divisors (173707441488).

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

64740359376 is a wasteful number, since it uses less digits than its factorization.

64740359376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30941 (or 30916 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 64740359376 in words is "sixty-four billion, seven hundred forty million, three hundred fifty-nine thousand, three hundred seventy-six".