64264774032 has 200 divisors, whose sum is σ = 196162296000. Its totient is φ = 20255609088.

The previous prime is 64264774003. The next prime is 64264774069. The reversal of 64264774032 is 23047746246.

It is a super-2 number, since 2×64264774032² (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 39 ways as a sum of consecutive naturals, for example, 14747598 + ... + 14751954.

It is an arithmetic number, because the mean of its divisors is an integer number (980811480).

Almost surely, 2^64264774032 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 64264774032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98081148000).

64264774032 is an abundant number, since it is smaller than the sum of its proper divisors (131897521968).

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

64264774032 is a wasteful number, since it uses less digits than its factorization.

64264774032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 64264774032 in words is "sixty-four billion, two hundred sixty-four million, seven hundred seventy-four thousand, thirty-two".