521535077452264 has 96 divisors (see below), whose sum is σ = 1005188048403840. Its totient is φ = 253677498547200.

The previous prime is 521535077452219. The next prime is 521535077452271. The reversal of 521535077452264 is 462254770535125.

It is a junction number, because it is equal to n+sod(n) for n = 521535077452199 and 521535077452208.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3742261944 + ... + 3742401304.

It is an arithmetic number, because the mean of its divisors is an integer number (10470708837540).

Almost surely, 2^{521535077452264} is an apocalyptic number.

It is an amenable number.

521535077452264 is a deficient number, since it is larger than the sum of its proper divisors (483652970951576).

521535077452264 is a wasteful number, since it uses less digits than its factorization.

521535077452264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140471 (or 140424 counting only the distinct ones).

The product of its (nonzero) digits is 70560000, while the sum is 58.

The spelling of 521535077452264 in words is "five hundred twenty-one trillion, five hundred thirty-five billion, seventy-seven million, four hundred fifty-two thousand, two hundred sixty-four".