13129984782 has 24 divisors (see below), whose sum is σ = 30121730496. Its totient is φ = 4119210816.

The previous prime is 13129984741. The next prime is 13129984783. The reversal of 13129984782 is 28748992131.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13129984783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21453918 + ... + 21454529.

It is an arithmetic number, because the mean of its divisors is an integer number (1255072104).

Almost surely, 2^13129984782 is an apocalyptic number.

13129984782 is an abundant number, since it is smaller than the sum of its proper divisors (16991745714).

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

13129984782 is a wasteful number, since it uses less digits than its factorization.

13129984782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42908472 (or 42908469 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The spelling of 13129984782 in words is "thirteen billion, one hundred twenty-nine million, nine hundred eighty-four thousand, seven hundred eighty-two".