71187478117 has 8 divisors (see below), whose sum is σ = 81462920000. Its totient is φ = 60938486784.

The previous prime is 71187478093. The next prime is 71187478133.

71187478117 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 71187478117 - 2¹⁵ = 71187445349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71187478157) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6606867 + ... + 6617632.

It is an arithmetic number, because the mean of its divisors is an integer number (10182865000).

Almost surely, 2^71187478117 is an apocalyptic number.

It is an amenable number.

71187478117 is a deficient number, since it is larger than the sum of its proper divisors (10275441883).

71187478117 is a wasteful number, since it uses less digits than its factorization.

71187478117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13225275.

The product of its digits is 614656, while the sum is 52.

The spelling of 71187478117 in words is "seventy-one billion, one hundred eighty-seven million, four hundred seventy-eight thousand, one hundred seventeen".