23293261909 has 4 divisors (see below), whose sum is σ = 24663453804. Its totient is φ = 21923070016.

The previous prime is 23293261889. The next prime is 23293261913. The reversal of 23293261909 is 90916239232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21520009809 + 1773252100 = 146697^2 + 42110^2 .

It is a cyclic number.

It is not a de Polignac number, because 23293261909 - 2⁵ = 23293261877 is a prime.

It is a super-2 number, since 2×23293261909² (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 (23293261939) 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, 685095922 + ... + 685095955.

It is an arithmetic number, because the mean of its divisors is an integer number (6165863451).

Almost surely, 2^23293261909 is an apocalyptic number.

It is an amenable number.

23293261909 is a deficient number, since it is larger than the sum of its proper divisors (1370191895).

23293261909 is a wasteful number, since it uses less digits than its factorization.

23293261909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370191894.

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 23293261909 in words is "twenty-three billion, two hundred ninety-three million, two hundred sixty-one thousand, nine hundred nine".