71759899632 has 120 divisors (see below), whose sum is σ = 193870841472. Its totient is φ = 22868238720.

The previous prime is 71759899619. The next prime is 71759899633. The reversal of 71759899632 is 23699895717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71759899633) 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, 3819253 + ... + 3837995.

Almost surely, 2^71759899632 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 71759899632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96935420736).

71759899632 is an abundant number, since it is smaller than the sum of its proper divisors (122110941840).

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

71759899632 is a wasteful number, since it uses less digits than its factorization.

71759899632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18899 (or 18862 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 66.

The spelling of 71759899632 in words is "seventy-one billion, seven hundred fifty-nine million, eight hundred ninety-nine thousand, six hundred thirty-two".