64831605352 has 32 divisors (see below), whose sum is σ = 121955830920. Its totient is φ = 32310190080.

The previous prime is 64831605341. The next prime is 64831605427. The reversal of 64831605352 is 25350613846.

It can be written as a sum of positive squares in 4 ways, for example, as 43569882756 + 21261722596 = 208734^2 + 145814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64831605299 and 64831605308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4090948 + ... + 4106764.

Almost surely, 2^64831605352 is an apocalyptic number.

It is an amenable number.

64831605352 is a deficient number, since it is larger than the sum of its proper divisors (57124225568).

64831605352 is a wasteful number, since it uses less digits than its factorization.

64831605352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461 (or 17457 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 64831605352 in words is "sixty-four billion, eight hundred thirty-one million, six hundred five thousand, three hundred fifty-two".