27797076761 has 2 divisors, whose sum is σ = 27797076762. Its totient is φ = 27797076760.

The previous prime is 27797076757. The next prime is 27797076767. The reversal of 27797076761 is 16767079772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20938090000 + 6858986761 = 144700^2 + 82819^2 .

It is a cyclic number.

It is not a de Polignac number, because 27797076761 - 2² = 27797076757 is a prime.

It is a super-2 number, since 2×27797076761² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27797076761.

It is not a weakly prime, because it can be changed into another prime (27797076767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13898538380 + 13898538381.

It is an arithmetic number, because the mean of its divisors is an integer number (13898538381).

Almost surely, 2^27797076761 is an apocalyptic number.

It is an amenable number.

27797076761 is a deficient number, since it is larger than the sum of its proper divisors (1).

27797076761 is an equidigital number, since it uses as much as digits as its factorization.

27797076761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10890936, while the sum is 59.

The spelling of 27797076761 in words is "twenty-seven billion, seven hundred ninety-seven million, seventy-six thousand, seven hundred sixty-one".