13045428956 has 72 divisors (see below), whose sum is σ = 28348790400. Its totient is φ = 5221933920.

The previous prime is 13045428953. The next prime is 13045428961. The reversal of 13045428956 is 65982454031.

It is a self number, because there is not a number n which added to its sum of digits gives 13045428956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045428953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 239735 + ... + 289073.

It is an arithmetic number, because the mean of its divisors is an integer number (393733200).

Almost surely, 2^13045428956 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 13045428956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14174395200).

13045428956 is an abundant number, since it is smaller than the sum of its proper divisors (15303361444).

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

13045428956 is a wasteful number, since it uses less digits than its factorization.

13045428956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49447 (or 49438 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 13045428956 in words is "thirteen billion, forty-five million, four hundred twenty-eight thousand, nine hundred fifty-six".