63963188901 has 12 divisors (see below), whose sum is σ = 93560783680. Its totient is φ = 42102351720.

The previous prime is 63963188893. The next prime is 63963188957. The reversal of 63963188901 is 10988136936.

It is not a de Polignac number, because 63963188901 - 2³ = 63963188893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63963188101) 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 11 ways as a sum of consecutive naturals, for example, 44980435 + ... + 44981856.

Almost surely, 2^63963188901 is an apocalyptic number.

It is an amenable number.

63963188901 is a deficient number, since it is larger than the sum of its proper divisors (29597594779).

63963188901 is a wasteful number, since it uses less digits than its factorization.

63963188901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89962376 (or 89962373 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 63963188901 in words is "sixty-three billion, nine hundred sixty-three million, one hundred eighty-eight thousand, nine hundred one".