71381206584 has 40 divisors (see below), whose sum is σ = 199933473960. Its totient is φ = 23793735312.

The previous prime is 71381206541. The next prime is 71381206591. The reversal of 71381206584 is 48560218317.

It is a congruent 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 in 9 ways as a sum of consecutive naturals, for example, 55077444 + ... + 55078739.

It is an arithmetic number, because the mean of its divisors is an integer number (4998336849).

Almost surely, 2^71381206584 is an apocalyptic number.

It is an amenable number.

71381206584 is an abundant number, since it is smaller than the sum of its proper divisors (128552267376).

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

71381206584 is a wasteful number, since it uses less digits than its factorization.

71381206584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110156201 (or 110156188 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 71381206584 in words is "seventy-one billion, three hundred eighty-one million, two hundred six thousand, five hundred eighty-four".