690941312816 has 10 divisors (see below), whose sum is σ = 1338698793612. Its totient is φ = 345470656400.

The previous prime is 690941312813. The next prime is 690941312837. The reversal of 690941312816 is 618213149096.

It is not an unprimeable number, because it can be changed into a prime (690941312813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21591916010 + ... + 21591916041.

Almost surely, 2^690941312816 is an apocalyptic number.

It is an amenable number.

690941312816 is a deficient number, since it is larger than the sum of its proper divisors (647757480796).

690941312816 is a wasteful number, since it uses less digits than its factorization.

690941312816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43183832059 (or 43183832053 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 690941312816 in words is "six hundred ninety billion, nine hundred forty-one million, three hundred twelve thousand, eight hundred sixteen".