71159597861 has 8 divisors (see below), whose sum is σ = 78944392800. Its totient is φ = 63594093040.

The previous prime is 71159597779. The next prime is 71159597863. The reversal of 71159597861 is 16879595117.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71159597861 - 2¹⁴ = 71159581477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

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 71159597861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71159597863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54821846 + ... + 54823143.

It is an arithmetic number, because the mean of its divisors is an integer number (9868049100).

Almost surely, 2^71159597861 is an apocalyptic number.

It is an amenable number.

71159597861 is a deficient number, since it is larger than the sum of its proper divisors (7784794939).

71159597861 is a wasteful number, since it uses less digits than its factorization.

71159597861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109645059.

The product of its digits is 4762800, while the sum is 59.

The spelling of 71159597861 in words is "seventy-one billion, one hundred fifty-nine million, five hundred ninety-seven thousand, eight hundred sixty-one".