71608383864 has 48 divisors (see below), whose sum is σ = 200626943400. Its totient is φ = 23046375744.

The previous prime is 71608383863. The next prime is 71608383929. The reversal of 71608383864 is 46838380617.

It is a super-2 number, since 2×71608383864² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71608383864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71608383863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17145514 + ... + 17149689.

Almost surely, 2^71608383864 is an apocalyptic number.

It is an amenable number.

71608383864 is an abundant number, since it is smaller than the sum of its proper divisors (129018559536).

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

71608383864 is a wasteful number, since it uses less digits than its factorization.

71608383864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34295244 (or 34295237 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 71608383864 in words is "seventy-one billion, six hundred eight million, three hundred eighty-three thousand, eight hundred sixty-four".