64537586715968 has 56 divisors (see below), whose sum is σ = 128266346553408. Its totient is φ = 32218525746176.

The previous prime is 64537586715941. The next prime is 64537586715997. The reversal of 64537586715968 is 86951768573546.

64537586715968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64537586715892 and 64537586715901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227775155 + ... + 228058317.

It is an arithmetic number, because the mean of its divisors is an integer number (2290470474168).

Almost surely, 2^{64537586715968} is an apocalyptic number.

It is an amenable number.

64537586715968 is a deficient number, since it is larger than the sum of its proper divisors (63728759837440).

64537586715968 is a wasteful number, since it uses less digits than its factorization.

64537586715968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288711 (or 288701 counting only the distinct ones).

The product of its digits is 9144576000, while the sum is 80.

The spelling of 64537586715968 in words is "sixty-four trillion, five hundred thirty-seven billion, five hundred eighty-six million, seven hundred fifteen thousand, nine hundred sixty-eight".