63403380965376 has 341 divisors, whose sum is σ = 190209069065731. Its totient is φ = 21134460321792.

The previous prime is 63403380965291. The next prime is 63403380965381. The reversal of 63403380965376 is 67356908330436.

It is a happy number.

The square root of 63403380965376 is 7962624.

It is a perfect power (a square, a 5-th power, a 10-th power), and thus also a powerful number.

It is a Jordan-Polya number, since it can be written as (4!)¹⁰.

63403380965376 is a `hidden beast` number, since 6 + 3 + 4 + 0 + 3 + 3 + 8 + 0 + 96 + 537 + 6 = 666.

It is an ABA number since it can be written as A⋅B^A, here for A=3, B=27648.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 10 ways as a sum of consecutive naturals, for example, 21134460321791 + 21134460321792 + 21134460321793.

Almost surely, 2^{63403380965376} is an apocalyptic number.

63403380965376 is the 7962624-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63403380965376

63403380965376 is an abundant number, since it is smaller than the sum of its proper divisors (126805688100355).

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

63403380965376 is an frugal number, since it uses more digits than its factorization.

63403380965376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 5 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 63.

The spelling of 63403380965376 in words is "sixty-three trillion, four hundred three billion, three hundred eighty million, nine hundred sixty-five thousand, three hundred seventy-six".