13239442770 has 32 divisors (see below), whose sum is σ = 32071629888. Its totient is φ = 3497521728.

The previous prime is 13239442759. The next prime is 13239442789. The reversal of 13239442770 is 7724493231.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2059009 + ... + 2065428.

It is an arithmetic number, because the mean of its divisors is an integer number (1002238434).

Almost surely, 2^13239442770 is an apocalyptic number.

13239442770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13239442770 is an abundant number, since it is smaller than the sum of its proper divisors (18832187118).

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

13239442770 is a wasteful number, since it uses less digits than its factorization.

13239442770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124554.

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 13239442770 in words is "thirteen billion, two hundred thirty-nine million, four hundred forty-two thousand, seven hundred seventy".