71826334864 has 40 divisors (see below), whose sum is σ = 143840238080. Its totient is φ = 34709299200.

The previous prime is 71826334837. The next prime is 71826334897. The reversal of 71826334864 is 46843362817.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287269 + ... + 475579.

It is an arithmetic number, because the mean of its divisors is an integer number (3596005952).

Almost surely, 2^71826334864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71826334864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71920119040).

71826334864 is an abundant number, since it is smaller than the sum of its proper divisors (72013903216).

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

71826334864 is a wasteful number, since it uses less digits than its factorization.

71826334864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189119 (or 189113 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 52.

The spelling of 71826334864 in words is "seventy-one billion, eight hundred twenty-six million, three hundred thirty-four thousand, eight hundred sixty-four".