690531185012 has 24 divisors (see below), whose sum is σ = 1221070011840. Its totient is φ = 341655102720.

The previous prime is 690531184997. The next prime is 690531185053. The reversal of 690531185012 is 210581135096.

690531185012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2536439 + ... + 2795457.

It is an arithmetic number, because the mean of its divisors is an integer number (50877917160).

Almost surely, 2^690531185012 is an apocalyptic number.

It is an amenable number.

690531185012 is a deficient number, since it is larger than the sum of its proper divisors (530538826828).

690531185012 is a wasteful number, since it uses less digits than its factorization.

690531185012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265991 (or 265989 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 690531185012 in words is "six hundred ninety billion, five hundred thirty-one million, one hundred eighty-five thousand, twelve".