23893345989 has 6 divisors (see below), whose sum is σ = 34512610886. Its totient is φ = 15928897320.

The previous prime is 23893345979. The next prime is 23893346003. The reversal of 23893345989 is 98954339832.

23893345989 is a `hidden beast` number, since 2 + 3 + 8 + 9 + 3 + 34 + 598 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22625273889 + 1268072100 = 150417^2 + 35610^2 .

It is not a de Polignac number, because 23893345989 - 2⁸ = 23893345733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23893345909) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1327408102 + ... + 1327408119.

Almost surely, 2^23893345989 is an apocalyptic number.

It is an amenable number.

23893345989 is a deficient number, since it is larger than the sum of its proper divisors (10619264897).

23893345989 is a wasteful number, since it uses less digits than its factorization.

23893345989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654816227 (or 2654816224 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 23893345989 in words is "twenty-three billion, eight hundred ninety-three million, three hundred forty-five thousand, nine hundred eighty-nine".