71017822513 has 12 divisors (see below), whose sum is σ = 79383986640. Its totient is φ = 63467385080.

The previous prime is 71017822487. The next prime is 71017822529. The reversal of 71017822513 is 31522871017.

It is not a de Polignac number, because 71017822513 - 2¹⁷ = 71017691441 is a prime.

It is a super-2 number, since 2×71017822513² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71017822543) 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 11 ways as a sum of consecutive naturals, for example, 4966795 + ... + 4981072.

It is an arithmetic number, because the mean of its divisors is an integer number (6615332220).

Almost surely, 2^71017822513 is an apocalyptic number.

It is an amenable number.

71017822513 is a deficient number, since it is larger than the sum of its proper divisors (8366164127).

71017822513 is a wasteful number, since it uses less digits than its factorization.

71017822513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947948 (or 9947937 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 71017822513 in words is "seventy-one billion, seventeen million, eight hundred twenty-two thousand, five hundred thirteen".