23728434929 has 2 divisors, whose sum is σ = 23728434930. Its totient is φ = 23728434928.

The previous prime is 23728434901. The next prime is 23728434937. The reversal of 23728434929 is 92943482732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22478105329 + 1250329600 = 149927^2 + 35360^2 .

It is a cyclic number.

It is not a de Polignac number, because 23728434929 - 2⁸ = 23728434673 is a prime.

It is not a weakly prime, because it can be changed into another prime (23728434959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11864217464 + 11864217465.

It is an arithmetic number, because the mean of its divisors is an integer number (11864217465).

Almost surely, 2^23728434929 is an apocalyptic number.

It is an amenable number.

23728434929 is a deficient number, since it is larger than the sum of its proper divisors (1).

23728434929 is an equidigital number, since it uses as much as digits as its factorization.

23728434929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 53.

The spelling of 23728434929 in words is "twenty-three billion, seven hundred twenty-eight million, four hundred thirty-four thousand, nine hundred twenty-nine".