802432274561 has 4 divisors (see below), whose sum is σ = 806030625792. Its totient is φ = 798833923332.

The previous prime is 802432274537. The next prime is 802432274599. The reversal of 802432274561 is 165472234208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802432274561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802432276561) 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 3 ways as a sum of consecutive naturals, for example, 1799175281 + ... + 1799175726.

It is an arithmetic number, because the mean of its divisors is an integer number (201507656448).

Almost surely, 2^802432274561 is an apocalyptic number.

It is an amenable number.

802432274561 is a deficient number, since it is larger than the sum of its proper divisors (3598351231).

802432274561 is a wasteful number, since it uses less digits than its factorization.

802432274561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598351230.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 802432274561 in words is "eight hundred two billion, four hundred thirty-two million, two hundred seventy-four thousand, five hundred sixty-one".