219444444912 has 160 divisors (see below), whose sum is σ = 723219425280. Its totient is φ = 55672968960.

The previous prime is 219444444887. The next prime is 219444444931.

219444444912 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531462 + ... + 849317.

It is an arithmetic number, because the mean of its divisors is an integer number (4520121408).

Almost surely, 2^219444444912 is an apocalyptic number.

219444444912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

219444444912 is an abundant number, since it is smaller than the sum of its proper divisors (503774980368).

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

219444444912 is a wasteful number, since it uses less digits than its factorization.

219444444912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380851 (or 1380845 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The spelling of 219444444912 in words is "two hundred nineteen billion, four hundred forty-four million, four hundred forty-four thousand, nine hundred twelve".