27777777527713 has 2 divisors, whose sum is σ = 27777777527714. Its totient is φ = 27777777527712.

The previous prime is 27777777527671. The next prime is 27777777527771. The reversal of 27777777527713 is 31772577777772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25757888499729 + 2019889027984 = 5075223^2 + 1421228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27777777527713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27777777527713.

It is not a weakly prime, because it can be changed into another prime (27777777521713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888888763856 + 13888888763857.

It is an arithmetic number, because the mean of its divisors is an integer number (13888888763857).

Almost surely, 2^{27777777527713} is an apocalyptic number.

It is an amenable number.

27777777527713 is a deficient number, since it is larger than the sum of its proper divisors (1).

27777777527713 is an equidigital number, since it uses as much as digits as its factorization.

27777777527713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2421216420, while the sum is 76.

The spelling of 27777777527713 in words is "twenty-seven trillion, seven hundred seventy-seven billion, seven hundred seventy-seven million, five hundred twenty-seven thousand, seven hundred thirteen".