23167071891 has 12 divisors (see below), whose sum is σ = 33530082768. Its totient is φ = 15414006384.

The previous prime is 23167071871. The next prime is 23167071913. The reversal of 23167071891 is 19817076132.

It is not a de Polignac number, because 23167071891 - 2¹⁵ = 23167039123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23167071821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2554240 + ... + 2563293.

It is an arithmetic number, because the mean of its divisors is an integer number (2794173564).

Almost surely, 2^23167071891 is an apocalyptic number.

23167071891 is a deficient number, since it is larger than the sum of its proper divisors (10363010877).

23167071891 is a wasteful number, since it uses less digits than its factorization.

23167071891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5118042 (or 5118039 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 23167071891 in words is "twenty-three billion, one hundred sixty-seven million, seventy-one thousand, eight hundred ninety-one".