23878376488637 has 4 divisors (see below), whose sum is σ = 26049137987616. Its totient is φ = 21707614989660.

The previous prime is 23878376488621. The next prime is 23878376488651. The reversal of 23878376488637 is 73688467387832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23878376488637 - 2⁴ = 23878376488621 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 (23878376488657) 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, 1085380749473 + ... + 1085380749494.

It is an arithmetic number, because the mean of its divisors is an integer number (6512284496904).

Almost surely, 2^{23878376488637} is an apocalyptic number.

It is an amenable number.

23878376488637 is a deficient number, since it is larger than the sum of its proper divisors (2170761498979).

23878376488637 is a wasteful number, since it uses less digits than its factorization.

23878376488637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170761498978.

The product of its digits is 10924720128, while the sum is 80.

The spelling of 23878376488637 in words is "twenty-three trillion, eight hundred seventy-eight billion, three hundred seventy-six million, four hundred eighty-eight thousand, six hundred thirty-seven".