52621682268688 has 20 divisors (see below), whose sum is σ = 109797163964908. Its totient is φ = 24286930277760.

The previous prime is 52621682268647. The next prime is 52621682268691. The reversal of 52621682268688 is 88686228612625.

It can be written as a sum of positive squares in 2 ways, for example, as 11364800653584 + 41256881615104 = 3371172^2 + 6423152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126494428323 + ... + 126494428738.

Almost surely, 2^{52621682268688} is an apocalyptic number.

It is an amenable number.

52621682268688 is an abundant number, since it is smaller than the sum of its proper divisors (57175481696220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52621682268688 is a wasteful number, since it uses less digits than its factorization.

52621682268688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252988857082 (or 252988857076 counting only the distinct ones).

The product of its digits is 424673280, while the sum is 70.

The spelling of 52621682268688 in words is "fifty-two trillion, six hundred twenty-one billion, six hundred eighty-two million, two hundred sixty-eight thousand, six hundred eighty-eight".