23929899417 has 10 divisors (see below), whose sum is σ = 35747133818. Its totient is φ = 15953266224.

The previous prime is 23929899377. The next prime is 23929899479. The reversal of 23929899417 is 71499892932.

It can be written as a sum of positive squares in only one way, i.e., 15912308736 + 8017590681 = 126144^2 + 89541^2 .

It is not a de Polignac number, because 23929899417 - 2¹⁰ = 23929898393 is a prime.

It is a super-2 number, since 2×23929899417² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23929899017) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 147715348 + ... + 147715509.

Almost surely, 2^23929899417 is an apocalyptic number.

23929899417 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23929899417 is a deficient number, since it is larger than the sum of its proper divisors (11817234401).

23929899417 is an equidigital number, since it uses as much as digits as its factorization.

23929899417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295430869 (or 295430860 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 23929899417 in words is "twenty-three billion, nine hundred twenty-nine million, eight hundred ninety-nine thousand, four hundred seventeen".