13120778248 has 32 divisors (see below), whose sum is σ = 25201173600. Its totient is φ = 6402090112.

The previous prime is 13120778233. The next prime is 13120778269. The reversal of 13120778248 is 84287702131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36790 + ... + 166117.

It is an arithmetic number, because the mean of its divisors is an integer number (787536675).

Almost surely, 2^13120778248 is an apocalyptic number.

It is an amenable number.

13120778248 is a deficient number, since it is larger than the sum of its proper divisors (12080395352).

13120778248 is a wasteful number, since it uses less digits than its factorization.

13120778248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203109 (or 203105 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 13120778248 in words is "thirteen billion, one hundred twenty million, seven hundred seventy-eight thousand, two hundred forty-eight".