63831616782 has 128 divisors (see below), whose sum is σ = 141327728640. Its totient is φ = 19146274560.

The previous prime is 63831616777. The next prime is 63831616799. The reversal of 63831616782 is 28761613836.

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 63 ways as a sum of consecutive naturals, for example, 48987543 + ... + 48988845.

It is an arithmetic number, because the mean of its divisors is an integer number (1104122880).

Almost surely, 2^63831616782 is an apocalyptic number.

63831616782 is an abundant number, since it is smaller than the sum of its proper divisors (77496111858).

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

63831616782 is a wasteful number, since it uses less digits than its factorization.

63831616782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638.

The product of its digits is 1741824, while the sum is 51.

The spelling of 63831616782 in words is "sixty-three billion, eight hundred thirty-one million, six hundred sixteen thousand, seven hundred eighty-two".