27976680228 has 48 divisors (see below), whose sum is σ = 75098584064. Its totient is φ = 7940397600.

The previous prime is 27976680217. The next prime is 27976680307. The reversal of 27976680228 is 82208667972.

It is a happy number.

It is a super-2 number, since 2×27976680228² (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1090150 + ... + 1115517.

Almost surely, 2^27976680228 is an apocalyptic number.

27976680228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27976680228 is an abundant number, since it is smaller than the sum of its proper divisors (47121903836).

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

27976680228 is a wasteful number, since it uses less digits than its factorization.

27976680228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205832 (or 2205830 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 57.

The spelling of 27976680228 in words is "twenty-seven billion, nine hundred seventy-six million, six hundred eighty thousand, two hundred twenty-eight".