71687823080 has 64 divisors (see below), whose sum is σ = 169948886400. Its totient is φ = 27140002560.

The previous prime is 71687823037. The next prime is 71687823133. The reversal of 71687823080 is 8032878617.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761909 + ... + 850811.

It is an arithmetic number, because the mean of its divisors is an integer number (2655451350).

Almost surely, 2^71687823080 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 71687823080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84974443200).

71687823080 is an abundant number, since it is smaller than the sum of its proper divisors (98261063320).

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

71687823080 is a wasteful number, since it uses less digits than its factorization.

71687823080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89994 (or 89990 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 71687823080 in words is "seventy-one billion, six hundred eighty-seven million, eight hundred twenty-three thousand, eighty".