690191873936 has 40 divisors (see below), whose sum is σ = 1366734618624. Its totient is φ = 337497304320.

The previous prime is 690191873933. The next prime is 690191873941. The reversal of 690191873936 is 639378191096.

It is a super-2 number, since 2×690191873936² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (690191873933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646001 + ... + 1340783.

Almost surely, 2^690191873936 is an apocalyptic number.

It is an amenable number.

690191873936 is a deficient number, since it is larger than the sum of its proper divisors (676542744688).

690191873936 is a wasteful number, since it uses less digits than its factorization.

690191873936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696159 (or 696153 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 62.

The spelling of 690191873936 in words is "six hundred ninety billion, one hundred ninety-one million, eight hundred seventy-three thousand, nine hundred thirty-six".