20963420796 has 24 divisors (see below), whose sum is σ = 49716529744. Its totient is φ = 6873252480.

The previous prime is 20963420789. The next prime is 20963420809. The reversal of 20963420796 is 69702436902.

It is a super-2 number, since 2×20963420796² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14318545 + ... + 14320008.

Almost surely, 2^20963420796 is an apocalyptic number.

It is an amenable number.

20963420796 is an abundant number, since it is smaller than the sum of its proper divisors (28753108948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20963420796 is a wasteful number, since it uses less digits than its factorization.

20963420796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28638621 (or 28638619 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 20963420796 in words is "twenty billion, nine hundred sixty-three million, four hundred twenty thousand, seven hundred ninety-six".