20893975804 has 12 divisors (see below), whose sum is σ = 39377108344. Its totient is φ = 9643373424.

The previous prime is 20893975763. The next prime is 20893975829. The reversal of 20893975804 is 40857939802.

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, 200903562 + ... + 200903665.

Almost surely, 2^20893975804 is an apocalyptic number.

It is an amenable number.

20893975804 is a deficient number, since it is larger than the sum of its proper divisors (18483132540).

20893975804 is a wasteful number, since it uses less digits than its factorization.

20893975804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401807244 (or 401807242 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 20893975804 in words is "twenty billion, eight hundred ninety-three million, nine hundred seventy-five thousand, eight hundred four".