63326859264 has 208 divisors, whose sum is σ = 189900144000. Its totient is φ = 20851605504.

The previous prime is 63326859259. The next prime is 63326859283. The reversal of 63326859264 is 46295862336.

It is a happy number.

63326859264 is a `hidden beast` number, since 6 + 3 + 326 + 8 + 59 + 264 = 666.

It is a super-2 number, since 2×63326859264² (a number of 22 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 63326859264.

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, 9175687 + ... + 9182585.

Almost surely, 2^63326859264 is an apocalyptic number.

63326859264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63326859264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94950072000).

63326859264 is an abundant number, since it is smaller than the sum of its proper divisors (126573284736).

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

63326859264 is an equidigital number, since it uses as much as digits as its factorization.

63326859264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7015 (or 6987 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The spelling of 63326859264 in words is "sixty-three billion, three hundred twenty-six million, eight hundred fifty-nine thousand, two hundred sixty-four".