63322681306 has 4 divisors (see below), whose sum is σ = 94984021962. Its totient is φ = 31661340652.

The previous prime is 63322681291. The next prime is 63322681327. The reversal of 63322681306 is 60318622336.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56803572225 + 6519109081 = 238335^2 + 80741^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15830670325 + ... + 15830670328.

Almost surely, 2^63322681306 is an apocalyptic number.

63322681306 is a deficient number, since it is larger than the sum of its proper divisors (31661340656).

63322681306 is a wasteful number, since it uses less digits than its factorization.

63322681306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31661340655.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 63322681306 in words is "sixty-three billion, three hundred twenty-two million, six hundred eighty-one thousand, three hundred six".