63393671960 has 96 divisors (see below), whose sum is σ = 148522215600. Its totient is φ = 24350227200.

The previous prime is 63393671947. The next prime is 63393671983. The reversal of 63393671960 is 6917639336.

It is a Cunningham number, because it is equal to 251781²-1.

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 23 ways as a sum of consecutive naturals, for example, 5029346 + ... + 5041934.

Almost surely, 2^63393671960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63393671960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74261107800).

63393671960 is an abundant number, since it is smaller than the sum of its proper divisors (85128543640).

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

63393671960 is a wasteful number, since it uses less digits than its factorization.

63393671960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793 (or 12758 counting only the distinct ones).

The product of its (nonzero) digits is 3306744, while the sum is 53.

The spelling of 63393671960 in words is "sixty-three billion, three hundred ninety-three million, six hundred seventy-one thousand, nine hundred sixty".