64131932260 has 96 divisors (see below), whose sum is σ = 154069776000. Its totient is φ = 22207933440.

The previous prime is 64131932243. The next prime is 64131932281. The reversal of 64131932260 is 6223913146.

It is a super-2 number, since 2×64131932260² (a number of 22 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 396891 + ... + 534589.

It is an arithmetic number, because the mean of its divisors is an integer number (1604893500).

Almost surely, 2^64131932260 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 64131932260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77034888000).

64131932260 is an abundant number, since it is smaller than the sum of its proper divisors (89937843740).

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

64131932260 is a wasteful number, since it uses less digits than its factorization.

64131932260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137821 (or 137819 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 64131932260 in words is "sixty-four billion, one hundred thirty-one million, nine hundred thirty-two thousand, two hundred sixty".