71290859895 has 48 divisors (see below), whose sum is σ = 125844761952. Its totient is φ = 37326009600.

The previous prime is 71290859891. The next prime is 71290859897. The reversal of 71290859895 is 59895809217.

It is not a de Polignac number, because 71290859895 - 2² = 71290859891 is a prime.

It is a super-2 number, since 2×71290859895² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71290859891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 843045 + ... + 923745.

It is an arithmetic number, because the mean of its divisors is an integer number (2621765874).

Almost surely, 2^71290859895 is an apocalyptic number.

71290859895 is a deficient number, since it is larger than the sum of its proper divisors (54553902057).

71290859895 is a wasteful number, since it uses less digits than its factorization.

71290859895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81072 (or 81069 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 63.

The spelling of 71290859895 in words is "seventy-one billion, two hundred ninety million, eight hundred fifty-nine thousand, eight hundred ninety-five".