64507492352 has 192 divisors, whose sum is σ = 139311900000. Its totient is φ = 29800529920.

The previous prime is 64507492289. The next prime is 64507492421. The reversal of 64507492352 is 25329470546.

It is a super-2 number, since 2×64507492352² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64507492297 and 64507492306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143669024 + ... + 143669472.

Almost surely, 2^64507492352 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 64507492352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69655950000).

64507492352 is an abundant number, since it is smaller than the sum of its proper divisors (74804407648).

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

64507492352 is a wasteful number, since it uses less digits than its factorization.

64507492352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 580 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 47.

The spelling of 64507492352 in words is "sixty-four billion, five hundred seven million, four hundred ninety-two thousand, three hundred fifty-two".