63886317049 has 4 divisors (see below), whose sum is σ = 63887838336. Its totient is φ = 63884795764.

The previous prime is 63886317023. The next prime is 63886317071. The reversal of 63886317049 is 94071368836.

It is a happy number.

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 not a de Polignac number, because 63886317049 - 2¹⁷ = 63886185977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63886317449) 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, 695809 + ... + 782254.

It is an arithmetic number, because the mean of its divisors is an integer number (15971959584).

Almost surely, 2^63886317049 is an apocalyptic number.

It is an amenable number.

63886317049 is a deficient number, since it is larger than the sum of its proper divisors (1521287).

63886317049 is a wasteful number, since it uses less digits than its factorization.

63886317049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521286.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 63886317049 in words is "sixty-three billion, eight hundred eighty-six million, three hundred seventeen thousand, forty-nine".