23595919981 has 8 divisors (see below), whose sum is σ = 25006834944. Its totient is φ = 22187551680.

The previous prime is 23595919967. The next prime is 23595919987. The reversal of 23595919981 is 18991959532.

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 23595919981 - 2¹⁵ = 23595887213 is a prime.

It is a super-2 number, since 2×23595919981² (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 (23595919987) 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, 617565 + ... + 654658.

It is an arithmetic number, because the mean of its divisors is an integer number (3125854368).

Almost surely, 2^23595919981 is an apocalyptic number.

It is an amenable number.

23595919981 is a deficient number, since it is larger than the sum of its proper divisors (1410914963).

23595919981 is a wasteful number, since it uses less digits than its factorization.

23595919981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273331.

The product of its digits is 7873200, while the sum is 61.

The spelling of 23595919981 in words is "twenty-three billion, five hundred ninety-five million, nine hundred nineteen thousand, nine hundred eighty-one".