64125761760 has 432 divisors, whose sum is σ = 228365373600. Its totient is φ = 16384665600.

The previous prime is 64125761743. The next prime is 64125761783. The reversal of 64125761760 is 6716752146.

64125761760 is a `hidden beast` number, since 6 + 4 + 1 + 2 + 576 + 1 + 76 + 0 = 666.

It is a super-2 number, since 2×64125761760² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 206192005 + ... + 206192315.

It is an arithmetic number, because the mean of its divisors is an integer number (528623550).

Almost surely, 2^64125761760 is an apocalyptic number.

64125761760 is a gapful number since it is divisible by the number (60) 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 64125761760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114182686800).

64125761760 is an abundant number, since it is smaller than the sum of its proper divisors (164239611840).

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

64125761760 is a wasteful number, since it uses less digits than its factorization.

64125761760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 64125761760 in words is "sixty-four billion, one hundred twenty-five million, seven hundred sixty-one thousand, seven hundred sixty".