63955054809 has 24 divisors (see below), whose sum is σ = 94946067840. Its totient is φ = 41463703008.

The previous prime is 63955054733. The next prime is 63955054817. The reversal of 63955054809 is 90845055936.

It is a happy number.

63955054809 is a `hidden beast` number, since 6 + 3 + 9 + 550 + 5 + 4 + 80 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-63955054809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63955054609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415099 + ... + 547920.

It is an arithmetic number, because the mean of its divisors is an integer number (3956086160).

Almost surely, 2^63955054809 is an apocalyptic number.

It is an amenable number.

63955054809 is a deficient number, since it is larger than the sum of its proper divisors (30991013031).

63955054809 is a wasteful number, since it uses less digits than its factorization.

63955054809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963229 (or 963226 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 63955054809 in words is "sixty-three billion, nine hundred fifty-five million, fifty-four thousand, eight hundred nine".