531688047605 has 32 divisors (see below), whose sum is σ = 782158567680. Its totient is φ = 341418401280.

The previous prime is 531688047587. The next prime is 531688047613. The reversal of 531688047605 is 506740886135.

It is not a de Polignac number, because 531688047605 - 2³² = 527393080309 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16149200 + ... + 16182089.

It is an arithmetic number, because the mean of its divisors is an integer number (24442455240).

Almost surely, 2^531688047605 is an apocalyptic number.

531688047605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531688047605 is a deficient number, since it is larger than the sum of its proper divisors (250470520075).

531688047605 is a wasteful number, since it uses less digits than its factorization.

531688047605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32331341.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 531688047605 in words is "five hundred thirty-one billion, six hundred eighty-eight million, forty-seven thousand, six hundred five".