219770449344 has 140 divisors (see below), whose sum is σ = 679793544144. Its totient is φ = 70071699456.

The previous prime is 219770449319. The next prime is 219770449357. The reversal of 219770449344 is 443944077912.

It is a happy number.

219770449344 is a `hidden beast` number, since 2 + 1 + 97 + 70 + 449 + 3 + 44 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 802377 + ... + 1040840.

Almost surely, 2^219770449344 is an apocalyptic number.

219770449344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

219770449344 is an abundant number, since it is smaller than the sum of its proper divisors (460023094800).

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

219770449344 is a wasteful number, since it uses less digits than its factorization.

219770449344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843264 (or 1843245 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 219770449344 in words is "two hundred nineteen billion, seven hundred seventy million, four hundred forty-nine thousand, three hundred forty-four".