23257706453 has 4 divisors (see below), whose sum is σ = 23824967628. Its totient is φ = 22690445280.

The previous prime is 23257706441. The next prime is 23257706471. The reversal of 23257706453 is 35460775232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2482231684 + 20775474769 = 49822^2 + 144137^2 .

It is a cyclic number.

It is not a de Polignac number, because 23257706453 - 2⁶ = 23257706389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23257006453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283630526 + ... + 283630607.

It is an arithmetic number, because the mean of its divisors is an integer number (5956241907).

Almost surely, 2^23257706453 is an apocalyptic number.

It is an amenable number.

23257706453 is a deficient number, since it is larger than the sum of its proper divisors (567261175).

23257706453 is an equidigital number, since it uses as much as digits as its factorization.

23257706453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567261174.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 23257706453 in words is "twenty-three billion, two hundred fifty-seven million, seven hundred six thousand, four hundred fifty-three".