71797017559 has 8 divisors (see below), whose sum is σ = 73139520240. Its totient is φ = 70462482816.

The previous prime is 71797017527. The next prime is 71797017707. The reversal of 71797017559 is 95571079717.

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

It is not a de Polignac number, because 71797017559 - 2⁵ = 71797017527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71797017959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1973794 + ... + 2009839.

It is an arithmetic number, because the mean of its divisors is an integer number (9142440030).

Almost surely, 2^71797017559 is an apocalyptic number.

71797017559 is a deficient number, since it is larger than the sum of its proper divisors (1342502681).

71797017559 is a wasteful number, since it uses less digits than its factorization.

71797017559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983969.

The product of its (nonzero) digits is 4862025, while the sum is 58.

The spelling of 71797017559 in words is "seventy-one billion, seven hundred ninety-seven million, seventeen thousand, five hundred fifty-nine".