13193942904 has 80 divisors (see below), whose sum is σ = 36992328120. Its totient is φ = 4393569600.

The previous prime is 13193942897. The next prime is 13193942911. The reversal of 13193942904 is 40924939131.

13193942904 is a `hidden beast` number, since 131 + 93 + 9 + 429 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (13193942897) and next prime (13193942911).

It is a self number, because there is not a number n which added to its sum of digits gives 13193942904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 671362 + ... + 690734.

Almost surely, 2^13193942904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13193942904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18496164060).

13193942904 is an abundant number, since it is smaller than the sum of its proper divisors (23798385216).

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

13193942904 is a wasteful number, since it uses less digits than its factorization.

13193942904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20442 (or 20429 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 13193942904 in words is "thirteen billion, one hundred ninety-three million, nine hundred forty-two thousand, nine hundred four".