20287451082 has 16 divisors (see below), whose sum is σ = 40583704320. Its totient is φ = 6761016672.

The previous prime is 20287451071. The next prime is 20287451099. The reversal of 20287451082 is 28015478202.

It is a self number, because there is not a number n which added to its sum of digits gives 20287451082.

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, 336603 + ... + 392270.

It is an arithmetic number, because the mean of its divisors is an integer number (2536481520).

Almost surely, 2^20287451082 is an apocalyptic number.

20287451082 is an abundant number, since it is smaller than the sum of its proper divisors (20296253238).

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

20287451082 is a wasteful number, since it uses less digits than its factorization.

20287451082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733517.

The product of its (nonzero) digits is 71680, while the sum is 39.

The spelling of 20287451082 in words is "twenty billion, two hundred eighty-seven million, four hundred fifty-one thousand, eighty-two".