102808783692 has 18 divisors (see below), whose sum is σ = 259877758868. Its totient is φ = 34269594552.

The previous prime is 102808783667. The next prime is 102808783733. The reversal of 102808783692 is 296387808201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1427899738 + ... + 1427899809.

Almost surely, 2^102808783692 is an apocalyptic number.

102808783692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102808783692 is an abundant number, since it is smaller than the sum of its proper divisors (157068975176).

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

102808783692 is a wasteful number, since it uses less digits than its factorization.

102808783692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855799557 (or 2855799552 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 102808783692 in words is "one hundred two billion, eight hundred eight million, seven hundred eighty-three thousand, six hundred ninety-two".