690476336838 has 48 divisors (see below), whose sum is σ = 1497499801200. Its totient is φ = 229933109952.

The previous prime is 690476336791. The next prime is 690476336863. The reversal of 690476336838 is 838633674096.

It is a happy number.

It is a congruent number.

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, 105204145 + ... + 105210707.

It is an arithmetic number, because the mean of its divisors is an integer number (31197912525).

Almost surely, 2^690476336838 is an apocalyptic number.

690476336838 is an abundant number, since it is smaller than the sum of its proper divisors (807023464362).

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

690476336838 is a wasteful number, since it uses less digits than its factorization.

690476336838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11413 (or 11410 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 63.

The spelling of 690476336838 in words is "six hundred ninety billion, four hundred seventy-six million, three hundred thirty-six thousand, eight hundred thirty-eight".