23473789117191 has 48 divisors (see below), whose sum is σ = 40908231640800. Its totient is φ = 13262879177856.

The previous prime is 23473789117187. The next prime is 23473789117193. The reversal of 23473789117191 is 19171198737432.

23473789117191 is a `hidden beast` number, since 2 + 3 + 4 + 7 + 378 + 9 + 1 + 171 + 91 = 666.

It is not a de Polignac number, because 23473789117191 - 2² = 23473789117187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23473789117193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99561180 + ... + 99796673.

It is an arithmetic number, because the mean of its divisors is an integer number (852254825850).

Almost surely, 2^{23473789117191} is an apocalyptic number.

23473789117191 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23473789117191 is a deficient number, since it is larger than the sum of its proper divisors (17434442523609).

23473789117191 is a wasteful number, since it uses less digits than its factorization.

23473789117191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199357965 (or 199357952 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 63.

The spelling of 23473789117191 in words is "twenty-three trillion, four hundred seventy-three billion, seven hundred eighty-nine million, one hundred seventeen thousand, one hundred ninety-one".