102428878866 has 16 divisors (see below), whose sum is σ = 204898699488. Its totient is φ = 34136136000.

The previous prime is 102428878843. The next prime is 102428878901. The reversal of 102428878866 is 668878824201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1673335 + ... + 1733466.

It is an arithmetic number, because the mean of its divisors is an integer number (12806168718).

Almost surely, 2^102428878866 is an apocalyptic number.

102428878866 is an abundant number, since it is smaller than the sum of its proper divisors (102469820622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102428878866 is a wasteful number, since it uses less digits than its factorization.

102428878866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411817.

The product of its (nonzero) digits is 16515072, while the sum is 60.

The spelling of 102428878866 in words is "one hundred two billion, four hundred twenty-eight million, eight hundred seventy-eight thousand, eight hundred sixty-six".