690622734916 has 12 divisors (see below), whose sum is σ = 1208948122732. Its totient is φ = 345208985568.

The previous prime is 690622734833. The next prime is 690622734917. The reversal of 690622734916 is 619437226096.

It can be written as a sum of positive squares in 2 ways, for example, as 516032469316 + 174590265600 = 718354^2 + 417840^2 .

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (690622734917) 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, 25580295 + ... + 25607278.

Almost surely, 2^690622734916 is an apocalyptic number.

It is an amenable number.

690622734916 is a deficient number, since it is larger than the sum of its proper divisors (518325387816).

690622734916 is a wasteful number, since it uses less digits than its factorization.

690622734916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51190950 (or 51190948 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 690622734916 in words is "six hundred ninety billion, six hundred twenty-two million, seven hundred thirty-four thousand, nine hundred sixteen".