71071493996 has 6 divisors (see below), whose sum is σ = 124375114500. Its totient is φ = 35535746996.

The previous prime is 71071493951. The next prime is 71071494029. The reversal of 71071493996 is 69939417017.

It is a happy 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 as a sum of consecutive naturals, namely, 8883936746 + ... + 8883936753.

It is an arithmetic number, because the mean of its divisors is an integer number (20729185750).

Almost surely, 2^71071493996 is an apocalyptic number.

It is an amenable number.

71071493996 is a deficient number, since it is larger than the sum of its proper divisors (53303620504).

71071493996 is a wasteful number, since it uses less digits than its factorization.

71071493996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767873503 (or 17767873501 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 56.

The spelling of 71071493996 in words is "seventy-one billion, seventy-one million, four hundred ninety-three thousand, nine hundred ninety-six".