23691959797 has 8 divisors (see below), whose sum is σ = 26395684992. Its totient is φ = 21079886400.

The previous prime is 23691959789. The next prime is 23691959827. The reversal of 23691959797 is 79795919632.

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 23691959797 - 2³ = 23691959789 is a prime.

It is a super-2 number, since 2×23691959797² (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 (23691951797) 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, 22912404 + ... + 22913437.

It is an arithmetic number, because the mean of its divisors is an integer number (3299460624).

Almost surely, 2^23691959797 is an apocalyptic number.

It is an amenable number.

23691959797 is a deficient number, since it is larger than the sum of its proper divisors (2703725195).

23691959797 is a wasteful number, since it uses less digits than its factorization.

23691959797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45825899.

The product of its digits is 57868020, while the sum is 67.

The spelling of 23691959797 in words is "twenty-three billion, six hundred ninety-one million, nine hundred fifty-nine thousand, seven hundred ninety-seven".