39429875136 has 112 divisors (see below), whose sum is σ = 108123337728. Its totient is φ = 12668160000.

The previous prime is 39429875129. The next prime is 39429875161. The reversal of 39429875136 is 63157892493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1480756 + ... + 1507148.

It is an arithmetic number, because the mean of its divisors is an integer number (965386944).

Almost surely, 2^39429875136 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 39429875136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54061668864).

39429875136 is an abundant number, since it is smaller than the sum of its proper divisors (68693462592).

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

39429875136 is a wasteful number, since it uses less digits than its factorization.

39429875136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26690 (or 26680 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The spelling of 39429875136 in words is "thirty-nine billion, four hundred twenty-nine million, eight hundred seventy-five thousand, one hundred thirty-six".