71188672223 has 4 divisors (see below), whose sum is σ = 71214934128. Its totient is φ = 71162410320.

The previous prime is 71188672187. The next prime is 71188672259. The reversal of 71188672223 is 32227688117.

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

It is an interprime number because it is at equal distance from previous prime (71188672187) and next prime (71188672259).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71188672223 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 (71188672283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13126886 + ... + 13132307.

It is an arithmetic number, because the mean of its divisors is an integer number (17803733532).

Almost surely, 2^71188672223 is an apocalyptic number.

71188672223 is a deficient number, since it is larger than the sum of its proper divisors (26261905).

71188672223 is a wasteful number, since it uses less digits than its factorization.

71188672223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26261904.

The product of its digits is 451584, while the sum is 47.

The spelling of 71188672223 in words is "seventy-one billion, one hundred eighty-eight million, six hundred seventy-two thousand, two hundred twenty-three".