23851770671 has 4 divisors (see below), whose sum is σ = 24097665312. Its totient is φ = 23605876032.

The previous prime is 23851770619. The next prime is 23851770713. The reversal of 23851770671 is 17607715832.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23851770671 - 2¹⁰ = 23851769647 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 (23851770071) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 122947175 + ... + 122947368.

It is an arithmetic number, because the mean of its divisors is an integer number (6024416328).

Almost surely, 2^23851770671 is an apocalyptic number.

23851770671 is a deficient number, since it is larger than the sum of its proper divisors (245894641).

23851770671 is an equidigital number, since it uses as much as digits as its factorization.

23851770671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245894640.

The product of its (nonzero) digits is 493920, while the sum is 47.

The spelling of 23851770671 in words is "twenty-three billion, eight hundred fifty-one million, seven hundred seventy thousand, six hundred seventy-one".