21672413062300 has 576 divisors, whose sum is σ = 64675860480000. Its totient is φ = 6084437990400.

The previous prime is 21672413062253. The next prime is 21672413062301. The reversal of 21672413062300 is 326031427612.

It is a self number, because there is not a number n which added to its sum of digits gives 21672413062300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21672413062301) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6193885951 + ... + 6193889449.

It is an arithmetic number, because the mean of its divisors is an integer number (112284480000).

Almost surely, 2^{21672413062300} is an apocalyptic number.

21672413062300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21672413062300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32337930240000).

21672413062300 is an abundant number, since it is smaller than the sum of its proper divisors (43003447417700).

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

21672413062300 is a wasteful number, since it uses less digits than its factorization.

21672413062300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026 (or 5019 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

Adding to 21672413062300 its reverse (326031427612), we get a palindrome (21998444489912).

The spelling of 21672413062300 in words is "twenty-one trillion, six hundred seventy-two billion, four hundred thirteen million, sixty-two thousand, three hundred".