71027853568 has 54 divisors (see below), whose sum is σ = 164925753846. Its totient is φ = 30440503296.

The previous prime is 71027853557. The next prime is 71027853587. The reversal of 71027853568 is 86535872017.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36294822144 + 34733031424 = 190512^2 + 186368^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2818605 + ... + 2843692.

Almost surely, 2^71027853568 is an apocalyptic number.

It is an amenable number.

71027853568 is an abundant number, since it is smaller than the sum of its proper divisors (93897900278).

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

71027853568 is an equidigital number, since it uses as much as digits as its factorization.

71027853568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5662327 (or 5662306 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 71027853568 in words is "seventy-one billion, twenty-seven million, eight hundred fifty-three thousand, five hundred sixty-eight".