63896381340 has 48 divisors (see below), whose sum is σ = 195174403200. Its totient is φ = 15490031680.

The previous prime is 63896381323. The next prime is 63896381359. The reversal of 63896381340 is 4318369836.

63896381340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48405690 + ... + 48407009.

It is an arithmetic number, because the mean of its divisors is an integer number (4066133400).

Almost surely, 2^63896381340 is an apocalyptic number.

63896381340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63896381340 is an abundant number, since it is smaller than the sum of its proper divisors (131278021860).

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

63896381340 is a wasteful number, since it uses less digits than its factorization.

63896381340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96812722 (or 96812720 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 63896381340 in words is "sixty-three billion, eight hundred ninety-six million, three hundred eighty-one thousand, three hundred forty".