219153056842 has 16 divisors (see below), whose sum is σ = 329009021640. Its totient is φ = 109483425792.

The previous prime is 219153056807. The next prime is 219153056887. The reversal of 219153056842 is 248650351912.

It can be written as a sum of positive squares in 4 ways, for example, as 105320369961 + 113832686881 = 324531^2 + 337391^2 .

It is a junction number, because it is equal to n+sod(n) for n = 219153056792 and 219153056801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13660858 + ... + 13676890.

Almost surely, 2^219153056842 is an apocalyptic number.

219153056842 is a deficient number, since it is larger than the sum of its proper divisors (109855964798).

219153056842 is a wasteful number, since it uses less digits than its factorization.

219153056842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21417.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 219153056842 in words is "two hundred nineteen billion, one hundred fifty-three million, fifty-six thousand, eight hundred forty-two".