71108873940 has 48 divisors (see below), whose sum is σ = 214420606848. Its totient is φ = 17503722624.

The previous prime is 71108873881. The next prime is 71108873981. The reversal of 71108873940 is 4937880117.

It is a super-2 number, since 2×71108873940² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71108873940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45581832 + ... + 45583391.

It is an arithmetic number, because the mean of its divisors is an integer number (4467095976).

Almost surely, 2^71108873940 is an apocalyptic number.

It is an amenable number.

71108873940 is an abundant number, since it is smaller than the sum of its proper divisors (143311732908).

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

71108873940 is a wasteful number, since it uses less digits than its factorization.

71108873940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91165248 (or 91165246 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The spelling of 71108873940 in words is "seventy-one billion, one hundred eight million, eight hundred seventy-three thousand, nine hundred forty".