71802134644 has 24 divisors (see below), whose sum is σ = 126367795008. Its totient is φ = 35697478080.

The previous prime is 71802134627. The next prime is 71802134669. The reversal of 71802134644 is 44643120817.

It is a junction number, because it is equal to n+sod(n) for n = 71802134597 and 71802134606.

It is a congruent number.

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, 624579 + ... + 730549.

It is an arithmetic number, because the mean of its divisors is an integer number (5265324792).

Almost surely, 2^71802134644 is an apocalyptic number.

It is an amenable number.

71802134644 is a deficient number, since it is larger than the sum of its proper divisors (54565660364).

71802134644 is a wasteful number, since it uses less digits than its factorization.

71802134644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106935 (or 106933 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 71802134644 in words is "seventy-one billion, eight hundred two million, one hundred thirty-four thousand, six hundred forty-four".