23423653507 has 4 divisors (see below), whose sum is σ = 24801515496. Its totient is φ = 22045791520.

The previous prime is 23423653471. The next prime is 23423653573. The reversal of 23423653507 is 70535632432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23423653507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23423653507.

It is not an unprimeable number, because it can be changed into a prime (23423653607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688930969 + ... + 688931002.

It is an arithmetic number, because the mean of its divisors is an integer number (6200378874).

Almost surely, 2^23423653507 is an apocalyptic number.

23423653507 is a deficient number, since it is larger than the sum of its proper divisors (1377861989).

23423653507 is a wasteful number, since it uses less digits than its factorization.

23423653507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377861988.

The product of its (nonzero) digits is 453600, while the sum is 40.

The spelling of 23423653507 in words is "twenty-three billion, four hundred twenty-three million, six hundred fifty-three thousand, five hundred seven".