71246845912 has 64 divisors (see below), whose sum is σ = 159282339840. Its totient is φ = 29496691200.

The previous prime is 71246845877. The next prime is 71246845921. The reversal of 71246845912 is 21954864217.

It is a super-2 number, since 2×71246845912² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721768 + ... + 814519.

It is an arithmetic number, because the mean of its divisors is an integer number (2488786560).

Almost surely, 2^71246845912 is an apocalyptic number.

It is an amenable number.

71246845912 is an abundant number, since it is smaller than the sum of its proper divisors (88035493928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71246845912 is a wasteful number, since it uses less digits than its factorization.

71246845912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536352 (or 1536348 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The spelling of 71246845912 in words is "seventy-one billion, two hundred forty-six million, eight hundred forty-five thousand, nine hundred twelve".