102619686971 has 2 divisors, whose sum is σ = 102619686972. Its totient is φ = 102619686970.

The previous prime is 102619686943. The next prime is 102619686979. The reversal of 102619686971 is 179686916201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102619686971 is a prime.

It is not a weakly prime, because it can be changed into another prime (102619686979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51309843485 + 51309843486.

It is an arithmetic number, because the mean of its divisors is an integer number (51309843486).

Almost surely, 2^102619686971 is an apocalyptic number.

102619686971 is a deficient number, since it is larger than the sum of its proper divisors (1).

102619686971 is an equidigital number, since it uses as much as digits as its factorization.

102619686971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The spelling of 102619686971 in words is "one hundred two billion, six hundred nineteen million, six hundred eighty-six thousand, nine hundred seventy-one".