690602584644 has 72 divisors (see below), whose sum is σ = 2019111232320. Its totient is φ = 194937728832.

The previous prime is 690602584631. The next prime is 690602584663. The reversal of 690602584644 is 446485206096.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16488039 + ... + 16529870.

It is an arithmetic number, because the mean of its divisors is an integer number (28043211560).

Almost surely, 2^690602584644 is an apocalyptic number.

It is an amenable number.

690602584644 is an abundant number, since it is smaller than the sum of its proper divisors (1328508647676).

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

690602584644 is a wasteful number, since it uses less digits than its factorization.

690602584644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33018009 (or 33018004 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 690602584644 in words is "six hundred ninety billion, six hundred two million, five hundred eighty-four thousand, six hundred forty-four".