20902802444 has 24 divisors (see below), whose sum is σ = 37063434240. Its totient is φ = 10313396496.

The previous prime is 20902802413. The next prime is 20902802467. The reversal of 20902802444 is 44420820902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585269 + ... + 619955.

It is an arithmetic number, because the mean of its divisors is an integer number (1544309760).

Almost surely, 2^20902802444 is an apocalyptic number.

It is an amenable number.

20902802444 is a deficient number, since it is larger than the sum of its proper divisors (16160631796).

20902802444 is a wasteful number, since it uses less digits than its factorization.

20902802444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36677 (or 36675 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The spelling of 20902802444 in words is "twenty billion, nine hundred two million, eight hundred two thousand, four hundred forty-four".