23239963157 has 2 divisors, whose sum is σ = 23239963158. Its totient is φ = 23239963156.

The previous prime is 23239963121. The next prime is 23239963207. The reversal of 23239963157 is 75136993232.

It is an a-pointer prime, because the next prime (23239963207) can be obtained adding 23239963157 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22522205476 + 717757681 = 150074^2 + 26791^2 .

It is a cyclic number.

It is not a de Polignac number, because 23239963157 - 2⁸ = 23239962901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23239960157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11619981578 + 11619981579.

It is an arithmetic number, because the mean of its divisors is an integer number (11619981579).

Almost surely, 2^23239963157 is an apocalyptic number.

It is an amenable number.

23239963157 is a deficient number, since it is larger than the sum of its proper divisors (1).

23239963157 is an equidigital number, since it uses as much as digits as its factorization.

23239963157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 50.

The spelling of 23239963157 in words is "twenty-three billion, two hundred thirty-nine million, nine hundred sixty-three thousand, one hundred fifty-seven".