102078160729 has 2 divisors, whose sum is σ = 102078160730. Its totient is φ = 102078160728.

The previous prime is 102078160721. The next prime is 102078160739. The reversal of 102078160729 is 927061870201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66687897600 + 35390263129 = 258240^2 + 188123^2 .

It is a cyclic number.

It is not a de Polignac number, because 102078160729 - 2³ = 102078160721 is a prime.

It is a super-2 number, since 2×102078160729² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102078160721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51039080364 + 51039080365.

It is an arithmetic number, because the mean of its divisors is an integer number (51039080365).

Almost surely, 2^102078160729 is an apocalyptic number.

It is an amenable number.

102078160729 is a deficient number, since it is larger than the sum of its proper divisors (1).

102078160729 is an equidigital number, since it uses as much as digits as its factorization.

102078160729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 102078160729 in words is "one hundred two billion, seventy-eight million, one hundred sixty thousand, seven hundred twenty-nine".