63485744758436 has 144 divisors (see below), whose sum is σ = 150309439365120. Its totient is φ = 22830506899200.

The previous prime is 63485744758433. The next prime is 63485744758487.

63485744758436 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (63485744758433) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 813057245 + ... + 813135323.

Almost surely, 2^{63485744758436} 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 63485744758436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75154719682560).

63485744758436 is an abundant number, since it is smaller than the sum of its proper divisors (86823694606684).

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

63485744758436 is a wasteful number, since it uses less digits than its factorization.

63485744758436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96586 (or 96573 counting only the distinct ones).

The product of its digits is 6502809600, while the sum is 74.

The spelling of 63485744758436 in words is "sixty-three trillion, four hundred eighty-five billion, seven hundred forty-four million, seven hundred fifty-eight thousand, four hundred thirty-six".