71845393594 has 16 divisors (see below), whose sum is σ = 116062531200. Its totient is φ = 33158101680.

The previous prime is 71845393577. The next prime is 71845393597. The reversal of 71845393594 is 49539354817.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71845393597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000059 + ... + 1069489.

It is an arithmetic number, because the mean of its divisors is an integer number (7253908200).

Almost surely, 2^71845393594 is an apocalyptic number.

71845393594 is a deficient number, since it is larger than the sum of its proper divisors (44217137606).

71845393594 is a wasteful number, since it uses less digits than its factorization.

71845393594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109245.

The product of its digits is 16329600, while the sum is 58.

The spelling of 71845393594 in words is "seventy-one billion, eight hundred forty-five million, three hundred ninety-three thousand, five hundred ninety-four".