71908536549 has 8 divisors (see below), whose sum is σ = 95881819392. Its totient is φ = 47937139040.

The previous prime is 71908536529. The next prime is 71908536551. The reversal of 71908536549 is 94563580917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71908536549 - 2⁵ = 71908536517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71908536509) 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 7 ways as a sum of consecutive naturals, for example, 379797 + ... + 536714.

It is an arithmetic number, because the mean of its divisors is an integer number (11985227424).

Almost surely, 2^71908536549 is an apocalyptic number.

It is an amenable number.

71908536549 is a deficient number, since it is larger than the sum of its proper divisors (23973282843).

71908536549 is a wasteful number, since it uses less digits than its factorization.

71908536549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942667.

The product of its (nonzero) digits is 8164800, while the sum is 57.

The spelling of 71908536549 in words is "seventy-one billion, nine hundred eight million, five hundred thirty-six thousand, five hundred forty-nine".