63913341936 has 80 divisors (see below), whose sum is σ = 170529683616. Its totient is φ = 20616081408.

The previous prime is 63913341929. The next prime is 63913342019. The reversal of 63913341936 is 63914331936.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 13636 + ... + 357788.

Almost surely, 2^63913341936 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 63913341936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85264841808).

63913341936 is an abundant number, since it is smaller than the sum of its proper divisors (106616341680).

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

63913341936 is a wasteful number, since it uses less digits than its factorization.

63913341936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344290 (or 344284 counting only the distinct ones).

The product of its digits is 944784, while the sum is 48.

The spelling of 63913341936 in words is "sixty-three billion, nine hundred thirteen million, three hundred forty-one thousand, nine hundred thirty-six".