63467444476436 has 144 divisors (see below), whose sum is σ = 150580623309312. Its totient is φ = 22776148200960.

The previous prime is 63467444476339. The next prime is 63467444476439.

It is a happy number.

63467444476436 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63467444476439) 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, 18836216 + ... + 21948528.

Almost surely, 2^{63467444476436} 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 63467444476436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75290311654656).

63467444476436 is an abundant number, since it is smaller than the sum of its proper divisors (87113178832876).

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

63467444476436 is a wasteful number, since it uses less digits than its factorization.

63467444476436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112822 (or 3112809 counting only the distinct ones).

The product of its digits is 2341011456, while the sum is 68.

The spelling of 63467444476436 in words is "sixty-three trillion, four hundred sixty-seven billion, four hundred forty-four million, four hundred seventy-six thousand, four hundred thirty-six".