71908536550 has 12 divisors (see below), whose sum is σ = 133749878076. Its totient is φ = 28763414600.

The previous prime is 71908536529. The next prime is 71908536551. The reversal of 71908536550 is 5563580917.

It is a junction number, because it is equal to n+sod(n) for n = 71908536494 and 71908536503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71908536551) 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 5 ways as a sum of consecutive naturals, for example, 719085316 + ... + 719085415.

It is an arithmetic number, because the mean of its divisors is an integer number (11145823173).

Almost surely, 2^71908536550 is an apocalyptic number.

71908536550 is a deficient number, since it is larger than the sum of its proper divisors (61841341526).

71908536550 is a wasteful number, since it uses less digits than its factorization.

71908536550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438170743 (or 1438170738 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 49.

The spelling of 71908536550 in words is "seventy-one billion, nine hundred eight million, five hundred thirty-six thousand, five hundred fifty".