71117700418 has 4 divisors (see below), whose sum is σ = 106676550630. Its totient is φ = 35558850208.

The previous prime is 71117700383. The next prime is 71117700449. The reversal of 71117700418 is 81400771117.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69824363049 + 1293337369 = 264243^2 + 35963^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 17779425103 + ... + 17779425106.

Almost surely, 2^71117700418 is an apocalyptic number.

71117700418 is a deficient number, since it is larger than the sum of its proper divisors (35558850212).

71117700418 is a wasteful number, since it uses less digits than its factorization.

71117700418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35558850211.

The product of its (nonzero) digits is 10976, while the sum is 37.

The spelling of 71117700418 in words is "seventy-one billion, one hundred seventeen million, seven hundred thousand, four hundred eighteen".