23815390047 has 8 divisors (see below), whose sum is σ = 31758625920. Its totient is φ = 15874540440.

The previous prime is 23815390021. The next prime is 23815390097. The reversal of 23815390047 is 74009351832.

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

It is not a de Polignac number, because 23815390047 - 2¹⁴ = 23815373663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23815389990 and 23815390008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23815390097) 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, 573147 + ... + 613292.

It is an arithmetic number, because the mean of its divisors is an integer number (3969828240).

Almost surely, 2^23815390047 is an apocalyptic number.

23815390047 is a deficient number, since it is larger than the sum of its proper divisors (7943235873).

23815390047 is a wasteful number, since it uses less digits than its factorization.

23815390047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193133.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 23815390047 in words is "twenty-three billion, eight hundred fifteen million, three hundred ninety thousand, forty-seven".