28829892884 has 48 divisors (see below), whose sum is σ = 58099111056. Its totient is φ = 12399360000.

The previous prime is 28829892853. The next prime is 28829892899. The reversal of 28829892884 is 48829892882.

It can be written as a sum of positive squares in 8 ways, for example, as 1766352784 + 27063540100 = 42028^2 + 164510^2 .

It is a Harshad number since it is a multiple of its sum of digits (68).

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, 72167 + ... + 250734.

It is an arithmetic number, because the mean of its divisors is an integer number (1210398147).

Almost surely, 2^28829892884 is an apocalyptic number.

It is an amenable number.

28829892884 is an abundant number, since it is smaller than the sum of its proper divisors (29269218172).

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

28829892884 is a wasteful number, since it uses less digits than its factorization.

28829892884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323036 (or 323034 counting only the distinct ones).

The product of its digits is 84934656, while the sum is 68.

The spelling of 28829892884 in words is "twenty-eight billion, eight hundred twenty-nine million, eight hundred ninety-two thousand, eight hundred eighty-four".