102128431764 has 24 divisors (see below), whose sum is σ = 238348119520. Its totient is φ = 34035889824.

The previous prime is 102128431759. The next prime is 102128431781. The reversal of 102128431764 is 467134821201.

It is a congruent number.

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, 803434 + ... + 921825.

Almost surely, 2^102128431764 is an apocalyptic number.

It is an amenable number.

102128431764 is an abundant number, since it is smaller than the sum of its proper divisors (136219687756).

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

102128431764 is a wasteful number, since it uses less digits than its factorization.

102128431764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730199 (or 1730197 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 102128431764 in words is "one hundred two billion, one hundred twenty-eight million, four hundred thirty-one thousand, seven hundred sixty-four".