27777675451 has 2 divisors, whose sum is σ = 27777675452. Its totient is φ = 27777675450.

The previous prime is 27777675397. The next prime is 27777675467. The reversal of 27777675451 is 15457677772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27777675451 - 2²⁵ = 27744121019 is a prime.

It is a super-2 number, since 2×27777675451² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27777675251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888837725 + 13888837726.

It is an arithmetic number, because the mean of its divisors is an integer number (13888837726).

Almost surely, 2^27777675451 is an apocalyptic number.

27777675451 is a deficient number, since it is larger than the sum of its proper divisors (1).

27777675451 is an equidigital number, since it uses as much as digits as its factorization.

27777675451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20168400, while the sum is 58.

The spelling of 27777675451 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred seventy-five thousand, four hundred fifty-one".