20876953920 has 112 divisors (see below), whose sum is σ = 66577025088. Its totient is φ = 5542604800.

The previous prime is 20876953901. The next prime is 20876953957. The reversal of 20876953920 is 2935967802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170020 + ... + 265820.

It is an arithmetic number, because the mean of its divisors is an integer number (594437724).

Almost surely, 2^20876953920 is an apocalyptic number.

20876953920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20876953920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33288512544).

20876953920 is an abundant number, since it is smaller than the sum of its proper divisors (45700071168).

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

20876953920 is a wasteful number, since it uses less digits than its factorization.

20876953920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96048 (or 96038 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 20876953920 in words is "twenty billion, eight hundred seventy-six million, nine hundred fifty-three thousand, nine hundred twenty".