23971642615 has 8 divisors (see below), whose sum is σ = 28768203360. Its totient is φ = 19175825952.

The previous prime is 23971642609. The next prime is 23971642627. The reversal of 23971642615 is 51624617932.

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 a de Polignac number, because none of the positive numbers 2^k-23971642615 is a prime.

It is a super-2 number, since 2×23971642615² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112500 + ... + 246169.

It is an arithmetic number, because the mean of its divisors is an integer number (3596025420).

Almost surely, 2^23971642615 is an apocalyptic number.

23971642615 is a deficient number, since it is larger than the sum of its proper divisors (4796560745).

23971642615 is a wasteful number, since it uses less digits than its factorization.

23971642615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372041.

The product of its digits is 544320, while the sum is 46.

The spelling of 23971642615 in words is "twenty-three billion, nine hundred seventy-one million, six hundred forty-two thousand, six hundred fifteen".