102639910027 has 2 divisors, whose sum is σ = 102639910028. Its totient is φ = 102639910026.

The previous prime is 102639910019. The next prime is 102639910049. The reversal of 102639910027 is 720019936201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102639910027 - 2³ = 102639910019 is a prime.

It is a super-2 number, since 2×102639910027² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102639910067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51319955013 + 51319955014.

It is an arithmetic number, because the mean of its divisors is an integer number (51319955014).

Almost surely, 2^102639910027 is an apocalyptic number.

102639910027 is a deficient number, since it is larger than the sum of its proper divisors (1).

102639910027 is an equidigital number, since it uses as much as digits as its factorization.

102639910027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

It can be divided in two parts, 10263 and 9910027, that multiplied together give a palindrome (101706607101).

The spelling of 102639910027 in words is "one hundred two billion, six hundred thirty-nine million, nine hundred ten thousand, twenty-seven".