23757317989 has 2 divisors, whose sum is σ = 23757317990. Its totient is φ = 23757317988.

The previous prime is 23757317977. The next prime is 23757318037. The reversal of 23757317989 is 98971375732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14234876100 + 9522441889 = 119310^2 + 97583^2 .

It is a cyclic number.

It is not a de Polignac number, because 23757317989 - 2²⁹ = 23220447077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23757318989) 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, 11878658994 + 11878658995.

It is an arithmetic number, because the mean of its divisors is an integer number (11878658995).

Almost surely, 2^23757317989 is an apocalyptic number.

It is an amenable number.

23757317989 is a deficient number, since it is larger than the sum of its proper divisors (1).

23757317989 is an equidigital number, since it uses as much as digits as its factorization.

23757317989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20003760, while the sum is 61.

The spelling of 23757317989 in words is "twenty-three billion, seven hundred fifty-seven million, three hundred seventeen thousand, nine hundred eighty-nine".