71343702891 has 12 divisors (see below), whose sum is σ = 103056411640. Its totient is φ = 47560439520.

The previous prime is 71343702847. The next prime is 71343702907. The reversal of 71343702891 is 19820734317.

It is not a de Polignac number, because 71343702891 - 2⁹ = 71343702379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71343702841) 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 11 ways as a sum of consecutive naturals, for example, 71631 + ... + 384471.

Almost surely, 2^71343702891 is an apocalyptic number.

71343702891 is a deficient number, since it is larger than the sum of its proper divisors (31712708749).

71343702891 is a wasteful number, since it uses less digits than its factorization.

71343702891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338186 (or 338183 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 71343702891 in words is "seventy-one billion, three hundred forty-three million, seven hundred two thousand, eight hundred ninety-one".