23657023981 has 8 divisors (see below), whose sum is σ = 23738170400. Its totient is φ = 23575954608.

The previous prime is 23657023927. The next prime is 23657023987. The reversal of 23657023981 is 18932075632.

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

It is a cyclic number.

It is not a de Polignac number, because 23657023981 - 2⁹ = 23657023469 is a prime.

It is a super-2 number, since 2×23657023981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23657023987) 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, 633430 + ... + 669736.

It is an arithmetic number, because the mean of its divisors is an integer number (2967271300).

Almost surely, 2^23657023981 is an apocalyptic number.

It is an amenable number.

23657023981 is a deficient number, since it is larger than the sum of its proper divisors (81146419).

23657023981 is a wasteful number, since it uses less digits than its factorization.

23657023981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38523.

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

The spelling of 23657023981 in words is "twenty-three billion, six hundred fifty-seven million, twenty-three thousand, nine hundred eighty-one".