63443431446 has 32 divisors (see below), whose sum is σ = 128946156768. Its totient is φ = 20806041600.

The previous prime is 63443431379. The next prime is 63443431459. The reversal of 63443431446 is 64413434436.

It is a junction number, because it is equal to n+sod(n) for n = 63443431398 and 63443431407.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4971 + ... + 356246.

It is an arithmetic number, because the mean of its divisors is an integer number (4029567399).

Almost surely, 2^63443431446 is an apocalyptic number.

63443431446 is an abundant number, since it is smaller than the sum of its proper divisors (65502725322).

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

63443431446 is a wasteful number, since it uses less digits than its factorization.

63443431446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361696.

The product of its digits is 995328, while the sum is 42.

The spelling of 63443431446 in words is "sixty-three billion, four hundred forty-three million, four hundred thirty-one thousand, four hundred forty-six".