212419787580 has 2304 divisors, whose sum is σ = 986956185600. Its totient is φ = 36682813440.

The previous prime is 212419787497. The next prime is 212419787581. The reversal of 212419787580 is 85787914212.

212419787580 is a `hidden beast` number, since 2 + 12 + 41 + 9 + 7 + 8 + 7 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212419787581) by changing a digit.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 4939995039 + ... + 4939995081.

It is an arithmetic number, because the mean of its divisors is an integer number (428366400).

Almost surely, 2^212419787580 is an apocalyptic number.

212419787580 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 212419787580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493478092800).

212419787580 is an abundant number, since it is smaller than the sum of its proper divisors (774536398020).

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

212419787580 is a wasteful number, since it uses less digits than its factorization.

212419787580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

It can be divided in two parts, 212419 and 787580, that added together give a palindrome (999999).

The spelling of 212419787580 in words is "two hundred twelve billion, four hundred nineteen million, seven hundred eighty-seven thousand, five hundred eighty".