71715211775 has 6 divisors (see below), whose sum is σ = 88926862632. Its totient is φ = 57372169400.

The previous prime is 71715211769. The next prime is 71715211781. The reversal of 71715211775 is 57711251717.

It is an interprime number because it is at equal distance from previous prime (71715211769) and next prime (71715211781).

It is not a de Polignac number, because 71715211775 - 2¹⁰ = 71715210751 is a prime.

It is a super-3 number, since 3×71715211775³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1434304211 + ... + 1434304260.

It is an arithmetic number, because the mean of its divisors is an integer number (14821143772).

Almost surely, 2^71715211775 is an apocalyptic number.

71715211775 is a deficient number, since it is larger than the sum of its proper divisors (17211650857).

71715211775 is a wasteful number, since it uses less digits than its factorization.

71715211775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868608481 (or 2868608476 counting only the distinct ones).

The product of its digits is 120050, while the sum is 44.

The spelling of 71715211775 in words is "seventy-one billion, seven hundred fifteen million, two hundred eleven thousand, seven hundred seventy-five".