15801738233 has 2 divisors, whose sum is σ = 15801738234. Its totient is φ = 15801738232.

The previous prime is 15801738157. The next prime is 15801738257. The reversal of 15801738233 is 33283710851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11601013264 + 4200724969 = 107708^2 + 64813^2 .

It is a cyclic number.

It is not a de Polignac number, because 15801738233 - 2²⁶ = 15734629369 is a prime.

It is not a weakly prime, because it can be changed into another prime (15801738133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7900869116 + 7900869117.

It is an arithmetic number, because the mean of its divisors is an integer number (7900869117).

Almost surely, 2^15801738233 is an apocalyptic number.

It is an amenable number.

15801738233 is a deficient number, since it is larger than the sum of its proper divisors (1).

15801738233 is an equidigital number, since it uses as much as digits as its factorization.

15801738233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 15801738233 in words is "fifteen billion, eight hundred one million, seven hundred thirty-eight thousand, two hundred thirty-three".