13400906309 has 32 divisors (see below), whose sum is σ = 16145245440. Its totient is φ = 10884284928.

The previous prime is 13400906303. The next prime is 13400906339. The reversal of 13400906309 is 90360900431.

It is a cyclic number.

It is not a de Polignac number, because 13400906309 - 2⁸ = 13400906053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400906303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1540079 + ... + 1548755.

It is an arithmetic number, because the mean of its divisors is an integer number (504538920).

Almost surely, 2^13400906309 is an apocalyptic number.

It is an amenable number.

13400906309 is a deficient number, since it is larger than the sum of its proper divisors (2744339131).

13400906309 is an equidigital number, since it uses as much as digits as its factorization.

13400906309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 13400906309 in words is "thirteen billion, four hundred million, nine hundred six thousand, three hundred nine".