71555695923 has 4 divisors (see below), whose sum is σ = 95407594568. Its totient is φ = 47703797280.

The previous prime is 71555695909. The next prime is 71555695927. The reversal of 71555695923 is 32959655517.

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

It is not a de Polignac number, because 71555695923 - 2⁸ = 71555695667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71555695927) 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, 11925949318 + ... + 11925949323.

It is an arithmetic number, because the mean of its divisors is an integer number (23851898642).

Almost surely, 2^71555695923 is an apocalyptic number.

71555695923 is a deficient number, since it is larger than the sum of its proper divisors (23851898645).

71555695923 is a wasteful number, since it uses less digits than its factorization.

71555695923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23851898644.

The product of its digits is 12757500, while the sum is 57.

The spelling of 71555695923 in words is "seventy-one billion, five hundred fifty-five million, six hundred ninety-five thousand, nine hundred twenty-three".