23399865507 has 8 divisors (see below), whose sum is σ = 31960792080. Its totient is φ = 15219424640.

The previous prime is 23399865487. The next prime is 23399865529. The reversal of 23399865507 is 70556899332.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23399865507 - 2¹² = 23399861411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23399865107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95121282 + ... + 95121527.

It is an arithmetic number, because the mean of its divisors is an integer number (3995099010).

Almost surely, 2^23399865507 is an apocalyptic number.

23399865507 is a deficient number, since it is larger than the sum of its proper divisors (8560926573).

23399865507 is a wasteful number, since it uses less digits than its factorization.

23399865507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190242853.

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 23399865507 in words is "twenty-three billion, three hundred ninety-nine million, eight hundred sixty-five thousand, five hundred seven".