102107775878 has 32 divisors (see below), whose sum is σ = 158593680000. Its totient is φ = 49271040000.

The previous prime is 102107775859. The next prime is 102107775907. The reversal of 102107775878 is 878577701201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10339283 + ... + 10349153.

It is an arithmetic number, because the mean of its divisors is an integer number (4956052500).

Almost surely, 2^102107775878 is an apocalyptic number.

102107775878 is a deficient number, since it is larger than the sum of its proper divisors (56485904122).

102107775878 is a wasteful number, since it uses less digits than its factorization.

102107775878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11264.

The product of its (nonzero) digits is 1536640, while the sum is 53.

The spelling of 102107775878 in words is "one hundred two billion, one hundred seven million, seven hundred seventy-five thousand, eight hundred seventy-eight".