71895989673720 has 256 divisors, whose sum is σ = 255366807580800. Its totient is φ = 17929549946880.

The previous prime is 71895989673719. The next prime is 71895989673733. The reversal of 71895989673720 is 2737698959817.

71895989673720 is a `hidden beast` number, since 7 + 18 + 9 + 598 + 9 + 6 + 7 + 3 + 7 + 2 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 71895989673720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9588511 + ... + 15353550.

Almost surely, 2^{71895989673720} is an apocalyptic number.

It is an amenable number.

71895989673720 is an abundant number, since it is smaller than the sum of its proper divisors (183470817907080).

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

71895989673720 is a wasteful number, since it uses less digits than its factorization.

71895989673720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24942255 (or 24942245 counting only the distinct ones).

The product of its (nonzero) digits is 2880541440, while the sum is 81.

The spelling of 71895989673720 in words is "seventy-one trillion, eight hundred ninety-five billion, nine hundred eighty-nine million, six hundred seventy-three thousand, seven hundred twenty".