13280357394 has 24 divisors (see below), whose sum is σ = 28993762512. Its totient is φ = 4392992760.

The previous prime is 13280357341. The next prime is 13280357407. The reversal of 13280357394 is 49375308231.

13280357394 is a `hidden beast` number, since 13 + 280 + 357 + 3 + 9 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2813664 + ... + 2818379.

It is an arithmetic number, because the mean of its divisors is an integer number (1208073438).

Almost surely, 2^13280357394 is an apocalyptic number.

13280357394 is an abundant number, since it is smaller than the sum of its proper divisors (15713405118).

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

13280357394 is a wasteful number, since it uses less digits than its factorization.

13280357394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5632182 (or 5632179 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 13280357394 in words is "thirteen billion, two hundred eighty million, three hundred fifty-seven thousand, three hundred ninety-four".