13047435520 has 72 divisors (see below), whose sum is σ = 35717379264. Its totient is φ = 4473403392.

The previous prime is 13047435491. The next prime is 13047435539. The reversal of 13047435520 is 2553474031.

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, 719134 + ... + 737053.

It is an arithmetic number, because the mean of its divisors is an integer number (496074712).

Almost surely, 2^13047435520 is an apocalyptic number.

13047435520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13047435520 is an abundant number, since it is smaller than the sum of its proper divisors (22669943744).

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

13047435520 is an equidigital number, since it uses as much as digits as its factorization.

13047435520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456215 (or 1456201 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 13047435520 in words is "thirteen billion, forty-seven million, four hundred thirty-five thousand, five hundred twenty".