63135893720 has 16 divisors (see below), whose sum is σ = 142055760960. Its totient is φ = 25254357472.

The previous prime is 63135893701. The next prime is 63135893749. The reversal of 63135893720 is 2739853136.

It is a super-2 number, since 2×63135893720² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789198632 + ... + 789198711.

It is an arithmetic number, because the mean of its divisors is an integer number (8878485060).

Almost surely, 2^63135893720 is an apocalyptic number.

It is an amenable number.

63135893720 is an abundant number, since it is smaller than the sum of its proper divisors (78919867240).

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

63135893720 is a wasteful number, since it uses less digits than its factorization.

63135893720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578397354 (or 1578397350 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 63135893720 in words is "sixty-three billion, one hundred thirty-five million, eight hundred ninety-three thousand, seven hundred twenty".