690287239192 has 64 divisors (see below), whose sum is σ = 1372080124800. Its totient is φ = 325037207040.

The previous prime is 690287239183. The next prime is 690287239211. The reversal of 690287239192 is 291932782096.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3086842 + ... + 3302902.

It is an arithmetic number, because the mean of its divisors is an integer number (21438751950).

Almost surely, 2^690287239192 is an apocalyptic number.

It is an amenable number.

690287239192 is a deficient number, since it is larger than the sum of its proper divisors (681792885608).

690287239192 is a wasteful number, since it uses less digits than its factorization.

690287239192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216436 (or 216432 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 690287239192 in words is "six hundred ninety billion, two hundred eighty-seven million, two hundred thirty-nine thousand, one hundred ninety-two".