63391539824946 has 12 divisors (see below), whose sum is σ = 137348336287422. Its totient is φ = 21130513274976.

The previous prime is 63391539824927. The next prime is 63391539824957. The reversal of 63391539824946 is 64942893519336.

63391539824946 is a `hidden beast` number, since 6 + 3 + 3 + 9 + 1 + 53 + 9 + 82 + 494 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51988498193025 + 11403041631921 = 7210305^2 + 3376839^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1760876106231 + ... + 1760876106266.

Almost surely, 2^{63391539824946} is an apocalyptic number.

63391539824946 is an abundant number, since it is smaller than the sum of its proper divisors (73956796462476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63391539824946 is a wasteful number, since it uses less digits than its factorization.

63391539824946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3521752212505 (or 3521752212502 counting only the distinct ones).

The product of its digits is 906992640, while the sum is 72.

The spelling of 63391539824946 in words is "sixty-three trillion, three hundred ninety-one billion, five hundred thirty-nine million, eight hundred twenty-four thousand, nine hundred forty-six".