690458864934 has 32 divisors (see below), whose sum is σ = 1407675024000. Its totient is φ = 225712027904.

The previous prime is 690458864923. The next prime is 690458864969. The reversal of 690458864934 is 439468854096.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2179179 + ... + 2475830.

It is an arithmetic number, because the mean of its divisors is an integer number (43989844500).

Almost surely, 2^690458864934 is an apocalyptic number.

690458864934 is an abundant number, since it is smaller than the sum of its proper divisors (717216159066).

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

690458864934 is a wasteful number, since it uses less digits than its factorization.

690458864934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655492.

The product of its (nonzero) digits is 179159040, while the sum is 66.

The spelling of 690458864934 in words is "six hundred ninety billion, four hundred fifty-eight million, eight hundred sixty-four thousand, nine hundred thirty-four".