102757481857 has 2 divisors, whose sum is σ = 102757481858. Its totient is φ = 102757481856.

The previous prime is 102757481809. The next prime is 102757481881. The reversal of 102757481857 is 758184757201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90562476096 + 12195005761 = 300936^2 + 110431^2 .

It is a cyclic number.

It is not a de Polignac number, because 102757481857 - 2²⁷ = 102623264129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102757481798 and 102757481807.

It is not a weakly prime, because it can be changed into another prime (102757481807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51378740928 + 51378740929.

It is an arithmetic number, because the mean of its divisors is an integer number (51378740929).

Almost surely, 2^102757481857 is an apocalyptic number.

It is an amenable number.

102757481857 is a deficient number, since it is larger than the sum of its proper divisors (1).

102757481857 is an equidigital number, since it uses as much as digits as its factorization.

102757481857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4390400, while the sum is 55.

The spelling of 102757481857 in words is "one hundred two billion, seven hundred fifty-seven million, four hundred eighty-one thousand, eight hundred fifty-seven".