27777116115 has 48 divisors (see below), whose sum is σ = 55056089088. Its totient is φ = 12690969408.

The previous prime is 27777116113. The next prime is 27777116173. The reversal of 27777116115 is 51161177772.

27777116115 is a `hidden beast` number, since 27 + 7 + 7 + 7 + 1 + 1 + 611 + 5 = 666.

It is not a de Polignac number, because 27777116115 - 2¹ = 27777116113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (27777116113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 557934 + ... + 605676.

It is an arithmetic number, because the mean of its divisors is an integer number (1147001856).

Almost surely, 2^27777116115 is an apocalyptic number.

27777116115 is a deficient number, since it is larger than the sum of its proper divisors (27278972973).

27777116115 is a wasteful number, since it uses less digits than its factorization.

27777116115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49608 (or 49605 counting only the distinct ones).

The product of its digits is 144060, while the sum is 45.

It can be divided in two parts, 2777711611 and 5, that added together give a square (2777711616 = 52704²).

The spelling of 27777116115 in words is "twenty-seven billion, seven hundred seventy-seven million, one hundred sixteen thousand, one hundred fifteen".