13040313797 has 12 divisors (see below), whose sum is σ = 15692427180. Its totient is φ = 10791982656.

The previous prime is 13040313787. The next prime is 13040313799. The reversal of 13040313797 is 79731304031.

It can be written as a sum of positive squares in 2 ways, for example, as 6935391841 + 6104921956 = 83279^2 + 78134^2 .

It is not a de Polignac number, because 13040313797 - 2⁸ = 13040313541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13040313797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040313799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4587008 + ... + 4589849.

It is an arithmetic number, because the mean of its divisors is an integer number (1307702265).

Almost surely, 2^13040313797 is an apocalyptic number.

It is an amenable number.

13040313797 is a deficient number, since it is larger than the sum of its proper divisors (2652113383).

13040313797 is an equidigital number, since it uses as much as digits as its factorization.

13040313797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9176900 (or 9176893 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 38.

The spelling of 13040313797 in words is "thirteen billion, forty million, three hundred thirteen thousand, seven hundred ninety-seven".