531400513516 has 24 divisors (see below), whose sum is σ = 943874032640. Its totient is φ = 261722582352.

The previous prime is 531400513489. The next prime is 531400513559. The reversal of 531400513516 is 615315004135.

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, 9712645 + ... + 9767203.

Almost surely, 2^531400513516 is an apocalyptic number.

It is an amenable number.

531400513516 is a deficient number, since it is larger than the sum of its proper divisors (412473519124).

531400513516 is a wasteful number, since it uses less digits than its factorization.

531400513516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90973 (or 90971 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 531400513516 in words is "five hundred thirty-one billion, four hundred million, five hundred thirteen thousand, five hundred sixteen".