23397791109 has 96 divisors (see below), whose sum is σ = 40389488640. Its totient is φ = 11911536000.

The previous prime is 23397791093. The next prime is 23397791159. The reversal of 23397791109 is 90119779332.

It is a happy number.

It is not a de Polignac number, because 23397791109 - 2⁴ = 23397791093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23397791159) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19288587 + ... + 19289799.

It is an arithmetic number, because the mean of its divisors is an integer number (420723840).

Almost surely, 2^23397791109 is an apocalyptic number.

It is an amenable number.

23397791109 is a deficient number, since it is larger than the sum of its proper divisors (16991697531).

23397791109 is a wasteful number, since it uses less digits than its factorization.

23397791109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1464 counting only the distinct ones).

The product of its (nonzero) digits is 642978, while the sum is 51.

The spelling of 23397791109 in words is "twenty-three billion, three hundred ninety-seven million, seven hundred ninety-one thousand, one hundred nine".