64537082168788 has 24 divisors (see below), whose sum is σ = 113245433525952. Its totient is φ = 32181321796224.

The previous prime is 64537082168753. The next prime is 64537082168789. The reversal of 64537082168788 is 88786128073546.

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64537082168788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64537082168789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6401656 + ... + 13040527.

It is an arithmetic number, because the mean of its divisors is an integer number (4718559730248).

Almost surely, 2^{64537082168788} is an apocalyptic number.

It is an amenable number.

64537082168788 is a deficient number, since it is larger than the sum of its proper divisors (48708351357164).

64537082168788 is a wasteful number, since it uses less digits than its factorization.

64537082168788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19444431 (or 19444429 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 73.

The spelling of 64537082168788 in words is "sixty-four trillion, five hundred thirty-seven billion, eighty-two million, one hundred sixty-eight thousand, seven hundred eighty-eight".