219893024820 has 48 divisors (see below), whose sum is σ = 703657680768. Its totient is φ = 50261262720.

The previous prime is 219893024809. The next prime is 219893024833. The reversal of 219893024820 is 28420398912.

It is a self number, because there is not a number n which added to its sum of digits gives 219893024820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261776991 + ... + 261777830.

It is an arithmetic number, because the mean of its divisors is an integer number (14659535016).

Almost surely, 2^219893024820 is an apocalyptic number.

219893024820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219893024820 is an abundant number, since it is smaller than the sum of its proper divisors (483764655948).

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

219893024820 is a wasteful number, since it uses less digits than its factorization.

219893024820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523554840 (or 523554838 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The spelling of 219893024820 in words is "two hundred nineteen billion, eight hundred ninety-three million, twenty-four thousand, eight hundred twenty".