23715343901 has 4 divisors (see below), whose sum is σ = 23715651900. Its totient is φ = 23715035904.

The previous prime is 23715343853. The next prime is 23715343909. The reversal of 23715343901 is 10934351732.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 17655499876 + 6059844025 = 132874^2 + 77845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23715343901 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 (23715343909) 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, 76115 + ... + 230703.

It is an arithmetic number, because the mean of its divisors is an integer number (5928912975).

Almost surely, 2^23715343901 is an apocalyptic number.

It is an amenable number.

23715343901 is a deficient number, since it is larger than the sum of its proper divisors (307999).

23715343901 is a wasteful number, since it uses less digits than its factorization.

23715343901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307998.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 23715343901 in words is "twenty-three billion, seven hundred fifteen million, three hundred forty-three thousand, nine hundred one".