23542501613 has 2 divisors, whose sum is σ = 23542501614. Its totient is φ = 23542501612.

The previous prime is 23542501601. The next prime is 23542501651. The reversal of 23542501613 is 31610524532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23501503204 + 40998409 = 153302^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 23542501613 - 2⁴ = 23542501597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23542501613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23544501613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11771250806 + 11771250807.

It is an arithmetic number, because the mean of its divisors is an integer number (11771250807).

Almost surely, 2^23542501613 is an apocalyptic number.

It is an amenable number.

23542501613 is a deficient number, since it is larger than the sum of its proper divisors (1).

23542501613 is an equidigital number, since it uses as much as digits as its factorization.

23542501613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 23542501613 in words is "twenty-three billion, five hundred forty-two million, five hundred one thousand, six hundred thirteen".