23791986837 has 6 divisors (see below), whose sum is σ = 34366203222. Its totient is φ = 15861324552.

The previous prime is 23791986797. The next prime is 23791986859. The reversal of 23791986837 is 73868919732.

It can be written as a sum of positive squares in only one way, i.e., 23091537681 + 700449156 = 151959^2 + 26466^2 .

It is not a de Polignac number, because 23791986837 - 2¹⁰ = 23791985813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23791986887) 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, 1321777038 + ... + 1321777055.

It is an arithmetic number, because the mean of its divisors is an integer number (5727700537).

Almost surely, 2^23791986837 is an apocalyptic number.

It is an amenable number.

23791986837 is a deficient number, since it is larger than the sum of its proper divisors (10574216385).

23791986837 is a wasteful number, since it uses less digits than its factorization.

23791986837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643554099 (or 2643554096 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 23791986837 in words is "twenty-three billion, seven hundred ninety-one million, nine hundred eighty-six thousand, eight hundred thirty-seven".