23415358729 has 4 divisors (see below), whose sum is σ = 26760409984. Its totient is φ = 20070307476.

The previous prime is 23415358717. The next prime is 23415358739. The reversal of 23415358729 is 92785351432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23415358729 - 2¹¹ = 23415356681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23415358739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672525617 + ... + 1672525630.

It is an arithmetic number, because the mean of its divisors is an integer number (6690102496).

Almost surely, 2^23415358729 is an apocalyptic number.

It is an amenable number.

23415358729 is a deficient number, since it is larger than the sum of its proper divisors (3345051255).

23415358729 is an equidigital number, since it uses as much as digits as its factorization.

23415358729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345051254.

The product of its digits is 1814400, while the sum is 49.

The spelling of 23415358729 in words is "twenty-three billion, four hundred fifteen million, three hundred fifty-eight thousand, seven hundred twenty-nine".