102082971779 has 2 divisors, whose sum is σ = 102082971780. Its totient is φ = 102082971778.

The previous prime is 102082971773. The next prime is 102082971827. The reversal of 102082971779 is 977179280201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102082971779 - 2⁴ = 102082971763 is a prime.

It is a super-2 number, since 2×102082971779² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102082971779.

It is not a weakly prime, because it can be changed into another prime (102082971773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51041485889 + 51041485890.

It is an arithmetic number, because the mean of its divisors is an integer number (51041485890).

Almost surely, 2^102082971779 is an apocalyptic number.

102082971779 is a deficient number, since it is larger than the sum of its proper divisors (1).

102082971779 is an equidigital number, since it uses as much as digits as its factorization.

102082971779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 53.

The spelling of 102082971779 in words is "one hundred two billion, eighty-two million, nine hundred seventy-one thousand, seven hundred seventy-nine".