23306754891 has 12 divisors (see below), whose sum is σ = 36149252712. Its totient is φ = 13318145568.

The previous prime is 23306754881. The next prime is 23306754949. The reversal of 23306754891 is 19845760332.

It is not a de Polignac number, because 23306754891 - 2¹⁹ = 23306230603 is a prime.

It is the 152666-th Hogben number.

It is a self number, because there is not a number n which added to its sum of digits gives 23306754891.

It is not an unprimeable number, because it can be changed into a prime (23306754881) by changing a digit.

It is a nontrivial repunit in base 152665.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79274530 + ... + 79274823.

It is an arithmetic number, because the mean of its divisors is an integer number (3012437726).

It is a 2-persistent number, because it is pandigital, and so is 2⋅23306754891 = 46613509782, but 3⋅23306754891 = 69920264673 is not.

Almost surely, 2^23306754891 is an apocalyptic number.

23306754891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23306754891 is a deficient number, since it is larger than the sum of its proper divisors (12842497821).

23306754891 is a wasteful number, since it uses less digits than its factorization.

23306754891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158549370 (or 158549363 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 23306754891 in words is "twenty-three billion, three hundred six million, seven hundred fifty-four thousand, eight hundred ninety-one".