23729397677 has 8 divisors (see below), whose sum is σ = 24499571712. Its totient is φ = 22968338400.

The previous prime is 23729397619. The next prime is 23729397709. The reversal of 23729397677 is 77679392732.

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 23729397677 - 2⁸ = 23729397421 is a prime.

It is a super-2 number, since 2×23729397677² (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 (23729397607) 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, 2273399 + ... + 2283812.

It is an arithmetic number, because the mean of its divisors is an integer number (3062446464).

Almost surely, 2^23729397677 is an apocalyptic number.

It is an amenable number.

23729397677 is a deficient number, since it is larger than the sum of its proper divisors (770174035).

23729397677 is a wasteful number, since it uses less digits than its factorization.

23729397677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557379.

The product of its digits is 42007896, while the sum is 62.

It can be divided in two parts, 2372 and 9397677, that added together give a palindrome (9400049).

The spelling of 23729397677 in words is "twenty-three billion, seven hundred twenty-nine million, three hundred ninety-seven thousand, six hundred seventy-seven".