63343325761 has 9 divisors (see below), whose sum is σ = 63957487881. Its totient is φ = 62735012784.

The previous prime is 63343325737. The next prime is 63343325783. The reversal of 63343325761 is 16752334336.

It is a happy number.

The square root of 63343325761 is 251681.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 18365399361 + 44977926400 = 135519^2 + 212080^2 .

It is not a de Polignac number, because 63343325761 - 2²³ = 63334937153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63343325261) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27432075 + ... + 27434383.

Almost surely, 2^63343325761 is an apocalyptic number.

63343325761 is the 251681-st square number.

63343325761 is the 125841-st centered octagonal number.

It is an amenable number.

63343325761 is a deficient number, since it is larger than the sum of its proper divisors (614162120).

63343325761 is an frugal number, since it uses more digits than its factorization.

63343325761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4836 (or 2418 counting only the distinct ones).

The product of its digits is 816480, while the sum is 43.

The spelling of 63343325761 in words is "sixty-three billion, three hundred forty-three million, three hundred twenty-five thousand, seven hundred sixty-one".