102905102905 has 32 divisors (see below), whose sum is σ = 136132379136. Its totient is φ = 74052000000.

The previous prime is 102905102887. The next prime is 102905102941. The reversal of 102905102905 is 509201509201.

It is not a de Polignac number, because 102905102905 - 2⁷ = 102905102777 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10388455 + ... + 10398355.

It is an arithmetic number, because the mean of its divisors is an integer number (4254136848).

Almost surely, 2^102905102905 is an apocalyptic number.

It is an amenable number.

102905102905 is a deficient number, since it is larger than the sum of its proper divisors (33227276231).

102905102905 is a wasteful number, since it uses less digits than its factorization.

102905102905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11889.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 102905102905 in words is "one hundred two billion, nine hundred five million, one hundred two thousand, nine hundred five".