63213321400 has 96 divisors (see below), whose sum is σ = 151835817600. Its totient is φ = 24449702400.

The previous prime is 63213321389. The next prime is 63213321419. The reversal of 63213321400 is 412331236.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9253186 + ... + 9260014.

It is an arithmetic number, because the mean of its divisors is an integer number (1581623100).

Almost surely, 2^63213321400 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 63213321400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75917908800).

63213321400 is an abundant number, since it is smaller than the sum of its proper divisors (88622496200).

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

63213321400 is a wasteful number, since it uses less digits than its factorization.

63213321400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8369 (or 8360 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 63213321400 its reverse (412331236), we get a palindrome (63625652636).

The spelling of 63213321400 in words is "sixty-three billion, two hundred thirteen million, three hundred twenty-one thousand, four hundred".