690929514388 has 12 divisors (see below), whose sum is σ = 1209146418900. Its totient is φ = 345459108992.

The previous prime is 690929514371. The next prime is 690929514389. The reversal of 690929514388 is 883415929096.

It can be written as a sum of positive squares in 2 ways, for example, as 659649347344 + 31280167044 = 812188^2 + 176862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690929514389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130581 + ... + 1630972.

It is an arithmetic number, because the mean of its divisors is an integer number (100762201575).

Almost surely, 2^690929514388 is an apocalyptic number.

It is an amenable number.

690929514388 is a deficient number, since it is larger than the sum of its proper divisors (518216904512).

690929514388 is a wasteful number, since it uses less digits than its factorization.

690929514388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824106 (or 2824104 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 64.

The spelling of 690929514388 in words is "six hundred ninety billion, nine hundred twenty-nine million, five hundred fourteen thousand, three hundred eighty-eight".