13391853240 has 32 divisors (see below), whose sum is σ = 40175560080. Its totient is φ = 3571160832.

The previous prime is 13391853203. The next prime is 13391853253. The reversal of 13391853240 is 4235819331.

It is a happy number.

It is a congruent number.

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, 55799269 + ... + 55799508.

Almost surely, 2^13391853240 is an apocalyptic number.

13391853240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13391853240 is an abundant number, since it is smaller than the sum of its proper divisors (26783706840).

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

13391853240 is a wasteful number, since it uses less digits than its factorization.

13391853240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111598791 (or 111598787 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 13391853240 in words is "thirteen billion, three hundred ninety-one million, eight hundred fifty-three thousand, two hundred forty".