23909637253 has 2 divisors, whose sum is σ = 23909637254. Its totient is φ = 23909637252.

The previous prime is 23909637247. The next prime is 23909637307. The reversal of 23909637253 is 35273690932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23235819489 + 673817764 = 152433^2 + 25958^2 .

It is a cyclic number.

It is not a de Polignac number, because 23909637253 - 2¹³ = 23909629061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23909637197 and 23909637206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23909637953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11954818626 + 11954818627.

It is an arithmetic number, because the mean of its divisors is an integer number (11954818627).

Almost surely, 2^23909637253 is an apocalyptic number.

It is an amenable number.

23909637253 is a deficient number, since it is larger than the sum of its proper divisors (1).

23909637253 is an equidigital number, since it uses as much as digits as its factorization.

23909637253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1837080, while the sum is 49.

The spelling of 23909637253 in words is "twenty-three billion, nine hundred nine million, six hundred thirty-seven thousand, two hundred fifty-three".