13090623697 has 4 divisors (see below), whose sum is σ = 13099054500. Its totient is φ = 13082192896.

The previous prime is 13090623691. The next prime is 13090623701. The reversal of 13090623697 is 79632609031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79632609031 = 19 ⋅4191189949.

It can be written as a sum of positive squares in 2 ways, for example, as 3485839681 + 9604784016 = 59041^2 + 98004^2 .

It is a cyclic number.

It is not a de Polignac number, because 13090623697 - 2¹⁹ = 13090099409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13090623691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4213072 + ... + 4216177.

It is an arithmetic number, because the mean of its divisors is an integer number (3274763625).

Almost surely, 2^13090623697 is an apocalyptic number.

It is an amenable number.

13090623697 is a deficient number, since it is larger than the sum of its proper divisors (8430803).

13090623697 is an equidigital number, since it uses as much as digits as its factorization.

13090623697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8430802.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 13090623697 in words is "thirteen billion, ninety million, six hundred twenty-three thousand, six hundred ninety-seven".