23270506509 has 4 divisors (see below), whose sum is σ = 31027342016. Its totient is φ = 15513671004.

The previous prime is 23270506477. The next prime is 23270506543. The reversal of 23270506509 is 90560507232.

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 not a de Polignac number, because 23270506509 - 2⁵ = 23270506477 is a prime.

It is a super-2 number, since 2×23270506509² (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 (23270505509) 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, 3878417749 + ... + 3878417754.

It is an arithmetic number, because the mean of its divisors is an integer number (7756835504).

Almost surely, 2^23270506509 is an apocalyptic number.

It is an amenable number.

23270506509 is a deficient number, since it is larger than the sum of its proper divisors (7756835507).

23270506509 is an equidigital number, since it uses as much as digits as its factorization.

23270506509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756835506.

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 23270506509 in words is "twenty-three billion, two hundred seventy million, five hundred six thousand, five hundred nine".