23701542517 has 2 divisors, whose sum is σ = 23701542518. Its totient is φ = 23701542516.

The previous prime is 23701542493. The next prime is 23701542521. The reversal of 23701542517 is 71524510732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20716996356 + 2984546161 = 143934^2 + 54631^2 .

It is a cyclic number.

It is not a de Polignac number, because 23701542517 - 2¹¹ = 23701540469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23701542577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11850771258 + 11850771259.

It is an arithmetic number, because the mean of its divisors is an integer number (11850771259).

Almost surely, 2^23701542517 is an apocalyptic number.

It is an amenable number.

23701542517 is a deficient number, since it is larger than the sum of its proper divisors (1).

23701542517 is an equidigital number, since it uses as much as digits as its factorization.

23701542517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 23701542517 in words is "twenty-three billion, seven hundred one million, five hundred forty-two thousand, five hundred seventeen".