64563107572 has 12 divisors (see below), whose sum is σ = 113246377636. Its totient is φ = 32206999680.

The previous prime is 64563107527. The next prime is 64563107591. The reversal of 64563107572 is 27570136546.

It can be written as a sum of positive squares in 2 ways, for example, as 5000752656 + 59562354916 = 70716^2 + 244054^2 .

It is a super-3 number, since 3×64563107572³ (a number of 33 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18636579 + ... + 18640042.

Almost surely, 2^64563107572 is an apocalyptic number.

It is an amenable number.

64563107572 is a deficient number, since it is larger than the sum of its proper divisors (48683270064).

64563107572 is a wasteful number, since it uses less digits than its factorization.

64563107572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37277058 (or 37277056 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 64563107572 in words is "sixty-four billion, five hundred sixty-three million, one hundred seven thousand, five hundred seventy-two".