63193983811 has 6 divisors (see below), whose sum is σ = 73511368980. Its totient is φ = 54166271796.

The previous prime is 63193983779. The next prime is 63193983821. The reversal of 63193983811 is 11838939136.

It is a happy number.

It is not a de Polignac number, because 63193983811 - 2⁵ = 63193983779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63193983821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644836521 + ... + 644836618.

It is an arithmetic number, because the mean of its divisors is an integer number (12251894830).

Almost surely, 2^63193983811 is an apocalyptic number.

63193983811 is a deficient number, since it is larger than the sum of its proper divisors (10317385169).

63193983811 is a wasteful number, since it uses less digits than its factorization.

63193983811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289673153 (or 1289673146 counting only the distinct ones).

The product of its digits is 839808, while the sum is 52.

The spelling of 63193983811 in words is "sixty-three billion, one hundred ninety-three million, nine hundred eighty-three thousand, eight hundred eleven".