63884848397 has 4 divisors (see below), whose sum is σ = 63888627516. Its totient is φ = 63881069280.

The previous prime is 63884848367. The next prime is 63884848439. The reversal of 63884848397 is 79384848836.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27886996036 + 35997852361 = 166994^2 + 189731^2 .

It is a cyclic number.

It is not a de Polignac number, because 63884848397 - 2⁸ = 63884848141 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 (63884848327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1864088 + ... + 1898049.

It is an arithmetic number, because the mean of its divisors is an integer number (15972156879).

Almost surely, 2^63884848397 is an apocalyptic number.

It is an amenable number.

63884848397 is a deficient number, since it is larger than the sum of its proper divisors (3779119).

63884848397 is a wasteful number, since it uses less digits than its factorization.

63884848397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779118.

The product of its digits is 222953472, while the sum is 68.

The spelling of 63884848397 in words is "sixty-three billion, eight hundred eighty-four million, eight hundred forty-eight thousand, three hundred ninety-seven".