63381343982 has 16 divisors (see below), whose sum is σ = 103808487600. Its totient is φ = 28783712640.

The previous prime is 63381343981. The next prime is 63381344011. The reversal of 63381343982 is 28934318336.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 63381343982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63381343981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274507 + ... + 1323302.

It is an arithmetic number, because the mean of its divisors is an integer number (6488030475).

Almost surely, 2^63381343982 is an apocalyptic number.

63381343982 is a deficient number, since it is larger than the sum of its proper divisors (40427143618).

63381343982 is a wasteful number, since it uses less digits than its factorization.

63381343982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598931.

The product of its digits is 2239488, while the sum is 50.

The spelling of 63381343982 in words is "sixty-three billion, three hundred eighty-one million, three hundred forty-three thousand, nine hundred eighty-two".