20807904282 has 32 divisors (see below), whose sum is σ = 45756555264. Its totient is φ = 6255774000.

The previous prime is 20807904263. The next prime is 20807904311. The reversal of 20807904282 is 28240970802.

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, 1232844 + ... + 1249607.

It is an arithmetic number, because the mean of its divisors is an integer number (1429892352).

Almost surely, 2^20807904282 is an apocalyptic number.

20807904282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20807904282 is an abundant number, since it is smaller than the sum of its proper divisors (24948650982).

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

20807904282 is a wasteful number, since it uses less digits than its factorization.

20807904282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482594.

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 20807904282 in words is "twenty billion, eight hundred seven million, nine hundred four thousand, two hundred eighty-two".