802181568 has 56 divisors (see below), whose sum is σ = 2142329472. Its totient is φ = 264888064.

The previous prime is 802181543. The next prime is 802181579. The reversal of 802181568 is 865181208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021 + ... + 40067.

Almost surely, 2^802181568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 802181568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1071164736).

802181568 is an abundant number, since it is smaller than the sum of its proper divisors (1340147904).

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

802181568 is a wasteful number, since it uses less digits than its factorization.

802181568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39169 (or 39159 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 39.

The square root of 802181568 is about 28322.8100300800. The cubic root of 802181568 is about 929.1608293260.

The spelling of 802181568 in words is "eight hundred two million, one hundred eighty-one thousand, five hundred sixty-eight".