531688047606 has 12 divisors (see below), whose sum is σ = 1151990769852. Its totient is φ = 177229349196.

The previous prime is 531688047587. The next prime is 531688047613. The reversal of 531688047606 is 606740886135.

531688047606 is a `hidden beast` number, since 5 + 3 + 168 + 8 + 0 + 476 + 0 + 6 = 666.

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 5 ways as a sum of consecutive naturals, for example, 14769112416 + ... + 14769112451.

It is an arithmetic number, because the mean of its divisors is an integer number (95999230821).

Almost surely, 2^531688047606 is an apocalyptic number.

531688047606 is an abundant number, since it is smaller than the sum of its proper divisors (620302722246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531688047606 is a wasteful number, since it uses less digits than its factorization.

531688047606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29538224875 (or 29538224872 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 531688047606 in words is "five hundred thirty-one billion, six hundred eighty-eight million, forty-seven thousand, six hundred six".