27797076757 has 2 divisors, whose sum is σ = 27797076758. Its totient is φ = 27797076756.

The previous prime is 27797076743. The next prime is 27797076761. The reversal of 27797076757 is 75767079772.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23101264081 + 4695812676 = 151991^2 + 68526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27797076757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27797076707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13898538378 + 13898538379.

It is an arithmetic number, because the mean of its divisors is an integer number (13898538379).

Almost surely, 2^27797076757 is an apocalyptic number.

It is an amenable number.

27797076757 is a deficient number, since it is larger than the sum of its proper divisors (1).

27797076757 is an equidigital number, since it uses as much as digits as its factorization.

27797076757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63530460, while the sum is 64.

The spelling of 27797076757 in words is "twenty-seven billion, seven hundred ninety-seven million, seventy-six thousand, seven hundred fifty-seven".