27628498057 has 2 divisors, whose sum is σ = 27628498058. Its totient is φ = 27628498056.

The previous prime is 27628498049. The next prime is 27628498061. The reversal of 27628498057 is 75089482672.

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., 16627844601 + 11000653456 = 128949^2 + 104884^2 .

It is a cyclic number.

It is not a de Polignac number, because 27628498057 - 2³ = 27628498049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27628497992 and 27628498010.

It is not a weakly prime, because it can be changed into another prime (27628498067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13814249028 + 13814249029.

It is an arithmetic number, because the mean of its divisors is an integer number (13814249029).

Almost surely, 2^27628498057 is an apocalyptic number.

It is an amenable number.

27628498057 is a deficient number, since it is larger than the sum of its proper divisors (1).

27628498057 is an equidigital number, since it uses as much as digits as its factorization.

27628498057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13547520, while the sum is 58.

The spelling of 27628498057 in words is "twenty-seven billion, six hundred twenty-eight million, four hundred ninety-eight thousand, fifty-seven".