20323620764 has 12 divisors (see below), whose sum is σ = 35572674144. Its totient is φ = 10159999584.

The previous prime is 20323620743. The next prime is 20323620803. The reversal of 20323620764 is 46702632302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427289 + ... + 472464.

It is an arithmetic number, because the mean of its divisors is an integer number (2964389512).

Almost surely, 2^20323620764 is an apocalyptic number.

It is an amenable number.

20323620764 is a deficient number, since it is larger than the sum of its proper divisors (15249053380).

20323620764 is a wasteful number, since it uses less digits than its factorization.

20323620764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905404 (or 905402 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 35.

The spelling of 20323620764 in words is "twenty billion, three hundred twenty-three million, six hundred twenty thousand, seven hundred sixty-four".