219101020434 has 48 divisors (see below), whose sum is σ = 479599009344. Its totient is φ = 72283428000.

The previous prime is 219101020409. The next prime is 219101020493. The reversal of 219101020434 is 434020101912.

It is a happy number.

219101020434 is a `hidden beast` number, since 219 + 1 + 0 + 10 + 2 + 0 + 434 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 219101020398 and 219101020407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5147379 + ... + 5189769.

It is an arithmetic number, because the mean of its divisors is an integer number (9991646028).

Almost surely, 2^219101020434 is an apocalyptic number.

219101020434 is an abundant number, since it is smaller than the sum of its proper divisors (260497988910).

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

219101020434 is a wasteful number, since it uses less digits than its factorization.

219101020434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45343 (or 45340 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 219101020434 in words is "two hundred nineteen billion, one hundred one million, twenty thousand, four hundred thirty-four".