690913749472 has 12 divisors (see below), whose sum is σ = 1360236444336. Its totient is φ = 345456874720.

The previous prime is 690913749467. The next prime is 690913749511. The reversal of 690913749472 is 274947319096.

It is a self number, because there is not a number n which added to its sum of digits gives 690913749472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10795527304 + ... + 10795527367.

It is an arithmetic number, because the mean of its divisors is an integer number (113353037028).

Almost surely, 2^690913749472 is an apocalyptic number.

It is an amenable number.

690913749472 is a deficient number, since it is larger than the sum of its proper divisors (669322694864).

690913749472 is a wasteful number, since it uses less digits than its factorization.

690913749472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591054681 (or 21591054673 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 61.

The spelling of 690913749472 in words is "six hundred ninety billion, nine hundred thirteen million, seven hundred forty-nine thousand, four hundred seventy-two".