23186913506 has 16 divisors (see below), whose sum is σ = 36325817280. Its totient is φ = 11088929520.

The previous prime is 23186913487. The next prime is 23186913551. The reversal of 23186913506 is 60531968132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2651030 + ... + 2659761.

It is an arithmetic number, because the mean of its divisors is an integer number (2270363580).

Almost surely, 2^23186913506 is an apocalyptic number.

23186913506 is a deficient number, since it is larger than the sum of its proper divisors (13138903774).

23186913506 is a wasteful number, since it uses less digits than its factorization.

23186913506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5310889.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 23186913506 in words is "twenty-three billion, one hundred eighty-six million, nine hundred thirteen thousand, five hundred six".