23729999999 has 8 divisors (see below), whose sum is σ = 24277363968. Its totient is φ = 23184405720.

The previous prime is 23729999927. The next prime is 23730000053. The reversal of 23729999999 is 99999992732.

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 23729999999 - 2⁸ = 23729999743 is a prime.

It is a super-2 number, since 2×23729999999² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

23729999999 is a modest number, since divided by 999999 gives 23729 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23729399999) 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, 415277 + ... + 468950.

It is an arithmetic number, because the mean of its divisors is an integer number (3034670496).

Almost surely, 2^23729999999 is an apocalyptic number.

23729999999 is a deficient number, since it is larger than the sum of its proper divisors (547363969).

23729999999 is an equidigital number, since it uses as much as digits as its factorization.

23729999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884845.

The product of its digits is 401769396, while the sum is 77.

The spelling of 23729999999 in words is "twenty-three billion, seven hundred twenty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".