71950505180 has 12 divisors (see below), whose sum is σ = 151096060920. Its totient is φ = 28780202064.

The previous prime is 71950505177. The next prime is 71950505239. The reversal of 71950505180 is 8150505917.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1798762610 + ... + 1798762649.

It is an arithmetic number, because the mean of its divisors is an integer number (12591338410).

Almost surely, 2^71950505180 is an apocalyptic number.

It is an amenable number.

71950505180 is an abundant number, since it is smaller than the sum of its proper divisors (79145555740).

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

71950505180 is a wasteful number, since it uses less digits than its factorization.

71950505180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597525268 (or 3597525266 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 41.

The spelling of 71950505180 in words is "seventy-one billion, nine hundred fifty million, five hundred five thousand, one hundred eighty".