690031486368 has 108 divisors (see below), whose sum is σ = 2282648847570. Its totient is φ = 197151849216.

The previous prime is 690031486343. The next prime is 690031486387. The reversal of 690031486368 is 863684130096.

It can be written as a sum of positive squares in only one way, i.e., 413258693904 + 276772792464 = 642852^2 + 526092^2 .

It is a super-2 number, since 2×690031486368² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24434283 + ... + 24462506.

Almost surely, 2^690031486368 is an apocalyptic number.

It is an amenable number.

690031486368 is an abundant number, since it is smaller than the sum of its proper divisors (1592617361202).

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

690031486368 is a wasteful number, since it uses less digits than its factorization.

690031486368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48896819 (or 48896801 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 690031486368 in words is "six hundred ninety billion, thirty-one million, four hundred eighty-six thousand, three hundred sixty-eight".