27008169720 has 128 divisors (see below), whose sum is σ = 93498762240. Its totient is φ = 6113341440.

The previous prime is 27008169703. The next prime is 27008169743. The reversal of 27008169720 is 2796180072.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69561 + ... + 242600.

It is an arithmetic number, because the mean of its divisors is an integer number (730459080).

Almost surely, 2^27008169720 is an apocalyptic number.

27008169720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27008169720 is an abundant number, since it is smaller than the sum of its proper divisors (66490592520).

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

27008169720 is a wasteful number, since it uses less digits than its factorization.

27008169720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312285 (or 312281 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 27008169720 in words is "twenty-seven billion, eight million, one hundred sixty-nine thousand, seven hundred twenty".