63190081944 has 48 divisors (see below), whose sum is σ = 186697971720. Its totient is φ = 19148509440.

The previous prime is 63190081937. The next prime is 63190081949. The reversal of 63190081944 is 44918009136.

63190081944 is a `hidden beast` number, since 631 + 9 + 0 + 0 + 8 + 1 + 9 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 63190081944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63190081949) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 39891937 + ... + 39893520.

Almost surely, 2^63190081944 is an apocalyptic number.

It is an amenable number.

63190081944 is an abundant number, since it is smaller than the sum of its proper divisors (123507889776).

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

63190081944 is a wasteful number, since it uses less digits than its factorization.

63190081944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79785480 (or 79785473 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 63190081944 in words is "sixty-three billion, one hundred ninety million, eighty-one thousand, nine hundred forty-four".