56121563734624 has 48 divisors (see below), whose sum is σ = 111649378434048. Its totient is φ = 27767673032832.

The previous prime is 56121563734619. The next prime is 56121563734637. The reversal of 56121563734624 is 42643736512165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22354902 + ... + 24738325.

It is an arithmetic number, because the mean of its divisors is an integer number (2326028717376).

Almost surely, 2^{56121563734624} is an apocalyptic number.

It is an amenable number.

56121563734624 is a deficient number, since it is larger than the sum of its proper divisors (55527814699424).

56121563734624 is a wasteful number, since it uses less digits than its factorization.

56121563734624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47093627 (or 47093619 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 55.

The spelling of 56121563734624 in words is "fifty-six trillion, one hundred twenty-one billion, five hundred sixty-three million, seven hundred thirty-four thousand, six hundred twenty-four".