71182947015 has 40 divisors (see below), whose sum is σ = 129506580720. Its totient is φ = 37397593728.

The previous prime is 71182946983. The next prime is 71182947023. The reversal of 71182947015 is 51074928117.

It is a happy number.

It is not a de Polignac number, because 71182947015 - 2⁵ = 71182946983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1284510 + ... + 1338779.

It is an arithmetic number, because the mean of its divisors is an integer number (3237664518).

Almost surely, 2^71182947015 is an apocalyptic number.

71182947015 is a deficient number, since it is larger than the sum of its proper divisors (58323633705).

71182947015 is a wasteful number, since it uses less digits than its factorization.

71182947015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2623373 (or 2623364 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 71182947015 in words is "seventy-one billion, one hundred eighty-two million, nine hundred forty-seven thousand, fifteen".