63381155982 has 32 divisors (see below), whose sum is σ = 132292258560. Its totient is φ = 20205651840.

The previous prime is 63381155969. The next prime is 63381156011. The reversal of 63381155982 is 28955118336.

It is a happy number.

It is a super-2 number, since 2×63381155982² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1099494 + ... + 1155702.

It is an arithmetic number, because the mean of its divisors is an integer number (4134133080).

Almost surely, 2^63381155982 is an apocalyptic number.

63381155982 is an abundant number, since it is smaller than the sum of its proper divisors (68911102578).

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

63381155982 is a wasteful number, since it uses less digits than its factorization.

63381155982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64408.

The product of its digits is 1555200, while the sum is 51.

The spelling of 63381155982 in words is "sixty-three billion, three hundred eighty-one million, one hundred fifty-five thousand, nine hundred eighty-two".