13147295791 has 24 divisors (see below), whose sum is σ = 15686062560. Its totient is φ = 10980748800.

The previous prime is 13147295767. The next prime is 13147295809. The reversal of 13147295791 is 19759274131.

It is not a de Polignac number, because 13147295791 - 2⁷ = 13147295663 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13147295701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1842711 + ... + 1849831.

It is an arithmetic number, because the mean of its divisors is an integer number (653585940).

Almost surely, 2^13147295791 is an apocalyptic number.

13147295791 is a deficient number, since it is larger than the sum of its proper divisors (2538766769).

13147295791 is an equidigital number, since it uses as much as digits as its factorization.

13147295791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8095 (or 8088 counting only the distinct ones).

The product of its digits is 476280, while the sum is 49.

The spelling of 13147295791 in words is "thirteen billion, one hundred forty-seven million, two hundred ninety-five thousand, seven hundred ninety-one".