71151988519 has 16 divisors (see below), whose sum is σ = 75516480000. Its totient is φ = 66851658720.

The previous prime is 71151988517. The next prime is 71151988553. The reversal of 71151988519 is 91588915117.

It is a cyclic number.

It is not a de Polignac number, because 71151988519 - 2¹ = 71151988517 is a prime.

It is a super-3 number, since 3×71151988519³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71151988519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71151988517) by changing a digit.

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, 1145637 + ... + 1206145.

It is an arithmetic number, because the mean of its divisors is an integer number (4719780000).

Almost surely, 2^71151988519 is an apocalyptic number.

71151988519 is a deficient number, since it is larger than the sum of its proper divisors (4364491481).

71151988519 is a wasteful number, since it uses less digits than its factorization.

71151988519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61038.

The product of its digits is 907200, while the sum is 55.

The spelling of 71151988519 in words is "seventy-one billion, one hundred fifty-one million, nine hundred eighty-eight thousand, five hundred nineteen".