63445887219 has 48 divisors (see below), whose sum is σ = 100864704384. Its totient is φ = 35162150400.

The previous prime is 63445887217. The next prime is 63445887223. The reversal of 63445887219 is 91278854436.

It is a happy number.

It is not a de Polignac number, because 63445887219 - 2¹ = 63445887217 is a prime.

It is a super-2 number, since 2×63445887219² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63445887217) 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, 543579 + ... + 649899.

It is an arithmetic number, because the mean of its divisors is an integer number (2101348008).

Almost surely, 2^63445887219 is an apocalyptic number.

63445887219 is a deficient number, since it is larger than the sum of its proper divisors (37418817165).

63445887219 is a wasteful number, since it uses less digits than its factorization.

63445887219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106468 (or 106455 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 63445887219 in words is "sixty-three billion, four hundred forty-five million, eight hundred eighty-seven thousand, two hundred nineteen".