71723469894 has 8 divisors (see below), whose sum is σ = 143446939800. Its totient is φ = 23907823296.

The previous prime is 71723469877. The next prime is 71723469959. The reversal of 71723469894 is 49896432717.

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

71723469894 is an admirable number.

It is a super-2 number, since 2×71723469894² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5976955819 + ... + 5976955830.

It is an arithmetic number, because the mean of its divisors is an integer number (17930867475).

Almost surely, 2^71723469894 is an apocalyptic number.

71723469894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71723469894 is a wasteful number, since it uses less digits than its factorization.

71723469894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11953911654.

The product of its digits is 18289152, while the sum is 60.

The spelling of 71723469894 in words is "seventy-one billion, seven hundred twenty-three million, four hundred sixty-nine thousand, eight hundred ninety-four".