23883978497 has 4 divisors (see below), whose sum is σ = 24240455856. Its totient is φ = 23527501140.

The previous prime is 23883978401. The next prime is 23883978509. The reversal of 23883978497 is 79487938832.

It is a happy number.

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 23883978497 - 2¹⁰ = 23883977473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23883978197) 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, 178238579 + ... + 178238712.

It is an arithmetic number, because the mean of its divisors is an integer number (6060113964).

Almost surely, 2^23883978497 is an apocalyptic number.

It is an amenable number.

23883978497 is a deficient number, since it is larger than the sum of its proper divisors (356477359).

23883978497 is an equidigital number, since it uses as much as digits as its factorization.

23883978497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356477358.

The product of its digits is 146313216, while the sum is 68.

The spelling of 23883978497 in words is "twenty-three billion, eight hundred eighty-three million, nine hundred seventy-eight thousand, four hundred ninety-seven".