27288911272 has 48 divisors (see below), whose sum is σ = 61715964960. Its totient is φ = 11079700128.

The previous prime is 27288911233. The next prime is 27288911281. The reversal of 27288911272 is 27211988272.

It is a super-2 number, since 2×27288911272² (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 (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654718 + ... + 695149.

It is an arithmetic number, because the mean of its divisors is an integer number (1285749270).

Almost surely, 2^27288911272 is an apocalyptic number.

It is an amenable number.

27288911272 is an abundant number, since it is smaller than the sum of its proper divisors (34427053688).

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

27288911272 is a wasteful number, since it uses less digits than its factorization.

27288911272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349918 (or 1349895 counting only the distinct ones).

The product of its digits is 451584, while the sum is 49.

The spelling of 27288911272 in words is "twenty-seven billion, two hundred eighty-eight million, nine hundred eleven thousand, two hundred seventy-two".