13172934720 has 224 divisors, whose sum is σ = 46401776640. Its totient is φ = 3139164160.

The previous prime is 13172934679. The next prime is 13172934727. The reversal of 13172934720 is 2743927131.

It is not an unprimeable number, because it can be changed into a prime (13172934727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 612469 + ... + 633611.

Almost surely, 2^13172934720 is an apocalyptic number.

13172934720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13172934720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23200888320).

13172934720 is an abundant number, since it is smaller than the sum of its proper divisors (33228841920).

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

13172934720 is a wasteful number, since it uses less digits than its factorization.

13172934720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21233 (or 21223 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 39.

The spelling of 13172934720 in words is "thirteen billion, one hundred seventy-two million, nine hundred thirty-four thousand, seven hundred twenty".