71999999999892 has 144 divisors (see below), whose sum is σ = 191883843645312. Its totient is φ = 22718325104640.

The previous prime is 71999999999887. The next prime is 71999999999899. The reversal of 71999999999892 is 29899999999917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71999999999899) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2101129743 + ... + 2101164009.

Almost surely, 2^{71999999999892} 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 71999999999892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95941921822656).

71999999999892 is an abundant number, since it is smaller than the sum of its proper divisors (119883843645420).

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

71999999999892 is a wasteful number, since it uses less digits than its factorization.

71999999999892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60558 (or 60553 counting only the distinct ones).

The product of its digits is 390519852912, while the sum is 108.

The spelling of 71999999999892 in words is "seventy-one trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, eight hundred ninety-two".