219193734342 has 16 divisors (see below), whose sum is σ = 478240875072. Its totient is φ = 66422343720.

The previous prime is 219193734341. The next prime is 219193734359. The reversal of 219193734342 is 243437391912.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 219193734291 and 219193734300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219193734341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660558528 + ... + 1660558659.

It is an arithmetic number, because the mean of its divisors is an integer number (29890054692).

Almost surely, 2^219193734342 is an apocalyptic number.

219193734342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

219193734342 is an abundant number, since it is smaller than the sum of its proper divisors (259047140730).

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

219193734342 is a wasteful number, since it uses less digits than its factorization.

219193734342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3321117203.

The product of its digits is 979776, while the sum is 48.

The spelling of 219193734342 in words is "two hundred nineteen billion, one hundred ninety-three million, seven hundred thirty-four thousand, three hundred forty-two".