102138604436 has 12 divisors (see below), whose sum is σ = 194991881280. Its totient is φ = 46426638360.

The previous prime is 102138604429. The next prime is 102138604457. The reversal of 102138604436 is 634406831201.

It is a happy number.

It is a super-2 number, since 2×102138604436² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 102138604436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160665916 + ... + 1160666003.

It is an arithmetic number, because the mean of its divisors is an integer number (16249323440).

Almost surely, 2^102138604436 is an apocalyptic number.

It is an amenable number.

102138604436 is a deficient number, since it is larger than the sum of its proper divisors (92853276844).

102138604436 is a wasteful number, since it uses less digits than its factorization.

102138604436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321331934 (or 2321331932 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 102138604436 in words is "one hundred two billion, one hundred thirty-eight million, six hundred four thousand, four hundred thirty-six".