71312625899 has 24 divisors (see below), whose sum is σ = 77946705648. Its totient is φ = 65189826560.

The previous prime is 71312625887. The next prime is 71312625907. The reversal of 71312625899 is 99852621317.

It is not a de Polignac number, because 71312625899 - 2²⁴ = 71295848683 is a prime.

It is a super-2 number, since 2×71312625899² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71312625899.

It is not an unprimeable number, because it can be changed into a prime (71312625869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2676467 + ... + 2702979.

It is an arithmetic number, because the mean of its divisors is an integer number (3247779402).

Almost surely, 2^71312625899 is an apocalyptic number.

71312625899 is a deficient number, since it is larger than the sum of its proper divisors (6634079749).

71312625899 is a wasteful number, since it uses less digits than its factorization.

71312625899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26815 (or 26798 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 53.

The spelling of 71312625899 in words is "seventy-one billion, three hundred twelve million, six hundred twenty-five thousand, eight hundred ninety-nine".