27008313777 has 12 divisors (see below), whose sum is σ = 39035404980. Its totient is φ = 17994744288.

The previous prime is 27008313767. The next prime is 27008313791. The reversal of 27008313777 is 77731380072.

27008313777 is a `hidden beast` number, since 270 + 0 + 8 + 3 + 1 + 377 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6640457121 + 20367856656 = 81489^2 + 142716^2 .

It is not a de Polignac number, because 27008313777 - 2¹⁵ = 27008281009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27008313767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 883998 + ... + 914039.

It is an arithmetic number, because the mean of its divisors is an integer number (3252950415).

Almost surely, 2^27008313777 is an apocalyptic number.

It is an amenable number.

27008313777 is a deficient number, since it is larger than the sum of its proper divisors (12027091203).

27008313777 is a wasteful number, since it uses less digits than its factorization.

27008313777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799712 (or 1799709 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The spelling of 27008313777 in words is "twenty-seven billion, eight million, three hundred thirteen thousand, seven hundred seventy-seven".