64588762952681 has 12 divisors (see below), whose sum is σ = 71006886543936. Its totient is φ = 58706614310520.

The previous prime is 64588762952663. The next prime is 64588762952767. The reversal of 64588762952681 is 18625926788546.

It is a de Polignac number, because none of the positive numbers 2^k-64588762952681 is a prime.

It is a super-2 number, since 2×64588762952681² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64588762957681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46784621 + ... + 48145386.

It is an arithmetic number, because the mean of its divisors is an integer number (5917240545328).

Almost surely, 2^{64588762952681} is an apocalyptic number.

It is an amenable number.

64588762952681 is a deficient number, since it is larger than the sum of its proper divisors (6418123591255).

64588762952681 is a wasteful number, since it uses less digits than its factorization.

64588762952681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94935652 (or 94935641 counting only the distinct ones).

The product of its digits is 2786918400, while the sum is 77.

The spelling of 64588762952681 in words is "sixty-four trillion, five hundred eighty-eight billion, seven hundred sixty-two million, nine hundred fifty-two thousand, six hundred eighty-one".