63878058771 has 16 divisors (see below), whose sum is σ = 87937056768. Its totient is φ = 41202806400.

The previous prime is 63878058737. The next prime is 63878058779. The reversal of 63878058771 is 17785087836.

It is not a de Polignac number, because 63878058771 - 2¹⁴ = 63878042387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63878058779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376686 + ... + 519276.

It is an arithmetic number, because the mean of its divisors is an integer number (5496066048).

Almost surely, 2^63878058771 is an apocalyptic number.

63878058771 is a deficient number, since it is larger than the sum of its proper divisors (24058997997).

63878058771 is a wasteful number, since it uses less digits than its factorization.

63878058771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147442.

The product of its (nonzero) digits is 15805440, while the sum is 60.

The spelling of 63878058771 in words is "sixty-three billion, eight hundred seventy-eight million, fifty-eight thousand, seven hundred seventy-one".