27399172311 has 24 divisors (see below), whose sum is σ = 46192733184. Its totient is φ = 15323547600.

The previous prime is 27399172301. The next prime is 27399172337. The reversal of 27399172311 is 11327199372.

27399172311 is a `hidden beast` number, since 27 + 399 + 1 + 7 + 231 + 1 = 666.

It is not a de Polignac number, because 27399172311 - 2¹¹ = 27399170263 is a prime.

It is a super-3 number, since 3×27399172311³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27399172301) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4623715 + ... + 4629636.

It is an arithmetic number, because the mean of its divisors is an integer number (1924697216).

Almost surely, 2^27399172311 is an apocalyptic number.

27399172311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27399172311 is a deficient number, since it is larger than the sum of its proper divisors (18793560873).

27399172311 is a wasteful number, since it uses less digits than its factorization.

27399172311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9253411 (or 9253408 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The spelling of 27399172311 in words is "twenty-seven billion, three hundred ninety-nine million, one hundred seventy-two thousand, three hundred eleven".