531688047597 has 64 divisors (see below), whose sum is σ = 919898357760. Its totient is φ = 297185283072.

The previous prime is 531688047587. The next prime is 531688047613. The reversal of 531688047597 is 795740886135.

531688047597 is a `hidden beast` number, since 5 + 31 + 6 + 8 + 8 + 0 + 4 + 7 + 597 = 666.

It is not a de Polignac number, because 531688047597 - 2⁴ = 531688047581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531688047587) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16177293 + ... + 16210125.

It is an arithmetic number, because the mean of its divisors is an integer number (14373411840).

Almost surely, 2^531688047597 is an apocalyptic number.

It is an amenable number.

531688047597 is a deficient number, since it is larger than the sum of its proper divisors (388210310163).

531688047597 is a wasteful number, since it uses less digits than its factorization.

531688047597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34719 (or 34713 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 63.

The spelling of 531688047597 in words is "five hundred thirty-one billion, six hundred eighty-eight million, forty-seven thousand, five hundred ninety-seven".