690604482646 has 16 divisors (see below), whose sum is σ = 1117183315248. Its totient is φ = 318285828000.

The previous prime is 690604482559. The next prime is 690604482661. The reversal of 690604482646 is 646284406096.

It is a super-2 number, since 2×690604482646² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18927360 + ... + 18963811.

It is an arithmetic number, because the mean of its divisors is an integer number (69823957203).

Almost surely, 2^690604482646 is an apocalyptic number.

690604482646 is a deficient number, since it is larger than the sum of its proper divisors (426578832602).

690604482646 is a wasteful number, since it uses less digits than its factorization.

690604482646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37891887.

The product of its (nonzero) digits is 11943936, while the sum is 55.

The spelling of 690604482646 in words is "six hundred ninety billion, six hundred four million, four hundred eighty-two thousand, six hundred forty-six".