63636463636 has 12 divisors (see below), whose sum is σ = 111396274612. Its totient is φ = 31808956608.

The previous prime is 63636463633. The next prime is 63636463661.

63636463636 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 8978699536 + 54657764100 = 94756^2 + 233790^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63636463633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2303355 + ... + 2330818.

Almost surely, 2^63636463636 is an apocalyptic number.

It is an amenable number.

63636463636 is a deficient number, since it is larger than the sum of its proper divisors (47759810976).

63636463636 is a wasteful number, since it uses less digits than its factorization.

63636463636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637610 (or 4637608 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 52.

The spelling of 63636463636 in words is "sixty-three billion, six hundred thirty-six million, four hundred sixty-three thousand, six hundred thirty-six".