71694875545 has 8 divisors (see below), whose sum is σ = 86128295040. Its totient is φ = 57292937520.

The previous prime is 71694875531. The next prime is 71694875587. The reversal of 71694875545 is 54557849617.

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

It is not a de Polignac number, because 71694875545 - 2⁹ = 71694875033 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 7865355 + ... + 7874464.

It is an arithmetic number, because the mean of its divisors is an integer number (10766036880).

Almost surely, 2^71694875545 is an apocalyptic number.

It is an amenable number.

71694875545 is a deficient number, since it is larger than the sum of its proper divisors (14433419495).

71694875545 is a wasteful number, since it uses less digits than its factorization.

71694875545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15740735.

The product of its digits is 42336000, while the sum is 61.

The spelling of 71694875545 in words is "seventy-one billion, six hundred ninety-four million, eight hundred seventy-five thousand, five hundred forty-five".