63264544873 has 4 divisors (see below), whose sum is σ = 64131182548. Its totient is φ = 62397907200.

The previous prime is 63264544813. The next prime is 63264544961. The reversal of 63264544873 is 37844546236.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13765859584 + 49498685289 = 117328^2 + 222483^2 .

It is a cyclic number.

It is not a de Polignac number, because 63264544873 - 2¹³ = 63264536681 is a prime.

It is a super-2 number, since 2×63264544873² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63264544873.

It is not an unprimeable number, because it can be changed into a prime (63264544813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433318728 + ... + 433318873.

It is an arithmetic number, because the mean of its divisors is an integer number (16032795637).

Almost surely, 2^63264544873 is an apocalyptic number.

It is an amenable number.

63264544873 is a deficient number, since it is larger than the sum of its proper divisors (866637675).

63264544873 is an equidigital number, since it uses as much as digits as its factorization.

63264544873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866637674.

The product of its digits is 11612160, while the sum is 52.

The spelling of 63264544873 in words is "sixty-three billion, two hundred sixty-four million, five hundred forty-four thousand, eight hundred seventy-three".