102798247188 has 108 divisors (see below), whose sum is σ = 302138504640. Its totient is φ = 27111599424.

The previous prime is 102798247163. The next prime is 102798247193. The reversal of 102798247188 is 881742897201.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 417868 + ... + 616611.

Almost surely, 2^102798247188 is an apocalyptic number.

It is an amenable number.

102798247188 is an abundant number, since it is smaller than the sum of its proper divisors (199340257452).

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

102798247188 is a wasteful number, since it uses less digits than its factorization.

102798247188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034526 (or 1034504 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 57.

The spelling of 102798247188 in words is "one hundred two billion, seven hundred ninety-eight million, two hundred forty-seven thousand, one hundred eighty-eight".