102620155326719 has 2 divisors, whose sum is σ = 102620155326720. Its totient is φ = 102620155326718.

The previous prime is 102620155326613. The next prime is 102620155326737. The reversal of 102620155326719 is 917623551026201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102620155326719 is a prime.

It is a super-2 number, since 2×102620155326719² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102620155320719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51310077663359 + 51310077663360.

It is an arithmetic number, because the mean of its divisors is an integer number (51310077663360).

Almost surely, 2^{102620155326719} is an apocalyptic number.

102620155326719 is a deficient number, since it is larger than the sum of its proper divisors (1).

102620155326719 is an equidigital number, since it uses as much as digits as its factorization.

102620155326719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 50.

The spelling of 102620155326719 in words is "one hundred two trillion, six hundred twenty billion, one hundred fifty-five million, three hundred twenty-six thousand, seven hundred nineteen".