28957045908 has 48 divisors (see below), whose sum is σ = 80576133120. Its totient is φ = 7913726304.

The previous prime is 28957045903. The next prime is 28957045919. The reversal of 28957045908 is 80954075982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28957045903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7492128 + ... + 7495991.

It is an arithmetic number, because the mean of its divisors is an integer number (1678669440).

Almost surely, 2^28957045908 is an apocalyptic number.

28957045908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28957045908 is an abundant number, since it is smaller than the sum of its proper divisors (51619087212).

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

28957045908 is a wasteful number, since it uses less digits than its factorization.

28957045908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14988156 (or 14988154 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 57.

The spelling of 28957045908 in words is "twenty-eight billion, nine hundred fifty-seven million, forty-five thousand, nine hundred eight".