20002800884 has 18 divisors (see below), whose sum is σ = 38476462962. Its totient is φ = 9092182000.

The previous prime is 20002800877. The next prime is 20002800901. The reversal of 20002800884 is 48800820002.

It can be written as a sum of positive squares in only one way, i.e., 18068736400 + 1934064484 = 134420^2 + 43978^2 .

It is a super-2 number, since 2×20002800884² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20002800884.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20663567 + ... + 20664534.

Almost surely, 2^20002800884 is an apocalyptic number.

It is an amenable number.

20002800884 is a deficient number, since it is larger than the sum of its proper divisors (18473662078).

20002800884 is a wasteful number, since it uses less digits than its factorization.

20002800884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41328127 (or 41328114 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 20002800884 in words is "twenty billion, two million, eight hundred thousand, eight hundred eighty-four".