27194188980 has 48 divisors (see below), whose sum is σ = 87021406080. Its totient is φ = 6215814528.

The previous prime is 27194188979. The next prime is 27194188991. The reversal of 27194188980 is 8988149172.

It is a self number, because there is not a number n which added to its sum of digits gives 27194188980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32373615 + ... + 32374454.

It is an arithmetic number, because the mean of its divisors is an integer number (1812945960).

Almost surely, 2^27194188980 is an apocalyptic number.

27194188980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27194188980 is an abundant number, since it is smaller than the sum of its proper divisors (59827217100).

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

27194188980 is a wasteful number, since it uses less digits than its factorization.

27194188980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64748088 (or 64748086 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 57.

The spelling of 27194188980 in words is "twenty-seven billion, one hundred ninety-four million, one hundred eighty-eight thousand, nine hundred eighty".