13239770912 has 48 divisors (see below), whose sum is σ = 27485166240. Its totient is φ = 6260617728.

The previous prime is 13239770879. The next prime is 13239770917. The reversal of 13239770912 is 21907793231.

It is not an unprimeable number, because it can be changed into a prime (13239770917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338348 + ... + 375444.

It is an arithmetic number, because the mean of its divisors is an integer number (572607630).

Almost surely, 2^13239770912 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 13239770912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13742583120).

13239770912 is an abundant number, since it is smaller than the sum of its proper divisors (14245395328).

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

13239770912 is a wasteful number, since it uses less digits than its factorization.

13239770912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37713 (or 37705 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 44.

The spelling of 13239770912 in words is "thirteen billion, two hundred thirty-nine million, seven hundred seventy thousand, nine hundred twelve".