63958911336 has 256 divisors, whose sum is σ = 189656640000. Its totient is φ = 19926466560.

The previous prime is 63958911311. The next prime is 63958911343. The reversal of 63958911336 is 63311985936.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118223226 + ... + 118223766.

It is an arithmetic number, because the mean of its divisors is an integer number (740846250).

Almost surely, 2^63958911336 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 63958911336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94828320000).

63958911336 is an abundant number, since it is smaller than the sum of its proper divisors (125697728664).

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

63958911336 is a wasteful number, since it uses less digits than its factorization.

63958911336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1071 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The spelling of 63958911336 in words is "sixty-three billion, nine hundred fifty-eight million, nine hundred eleven thousand, three hundred thirty-six".