28274140880 has 40 divisors (see below), whose sum is σ = 67266161952. Its totient is φ = 11046639744.

The previous prime is 28274140859. The next prime is 28274140919. The reversal of 28274140880 is 8804147282.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4106174 + ... + 4113053.

Almost surely, 2^28274140880 is an apocalyptic number.

28274140880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28274140880 is an abundant number, since it is smaller than the sum of its proper divisors (38992021072).

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

28274140880 is a wasteful number, since it uses less digits than its factorization.

28274140880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8219283 (or 8219277 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 44.

The spelling of 28274140880 in words is "twenty-eight billion, two hundred seventy-four million, one hundred forty thousand, eight hundred eighty".