28913372684 has 48 divisors (see below), whose sum is σ = 58666083840. Its totient is φ = 12212492160.

The previous prime is 28913372681. The next prime is 28913372687. The reversal of 28913372684 is 48627331982.

It is an interprime number because it is at equal distance from previous prime (28913372681) and next prime (28913372687).

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28913372681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 756359 + ... + 793665.

It is an arithmetic number, because the mean of its divisors is an integer number (1222210080).

Almost surely, 2^28913372684 is an apocalyptic number.

It is an amenable number.

28913372684 is an abundant number, since it is smaller than the sum of its proper divisors (29752711156).

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

28913372684 is a wasteful number, since it uses less digits than its factorization.

28913372684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37718 (or 37716 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The spelling of 28913372684 in words is "twenty-eight billion, nine hundred thirteen million, three hundred seventy-two thousand, six hundred eighty-four".