63464106631420 has 144 divisors (see below), whose sum is σ = 149617111865760. Its totient is φ = 22590630120960.

The previous prime is 63464106631319. The next prime is 63464106631427. The reversal of 63464106631420 is 2413660146436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63464106631427) 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, 20444374 + ... + 23343106.

It is an arithmetic number, because the mean of its divisors is an integer number (1039007721290).

Almost surely, 2^{63464106631420} 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 63464106631420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74808555932880).

63464106631420 is an abundant number, since it is smaller than the sum of its proper divisors (86153005234340).

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

63464106631420 is a wasteful number, since it uses less digits than its factorization.

63464106631420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898956 (or 2898943 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

Adding to 63464106631420 its reverse (2413660146436), we get a palindrome (65877766777856).

The spelling of 63464106631420 in words is "sixty-three trillion, four hundred sixty-four billion, one hundred six million, six hundred thirty-one thousand, four hundred twenty".