4189854794 has 4 divisors (see below), whose sum is σ = 6284782194. Its totient is φ = 2094927396.

The previous prime is 4189854751. The next prime is 4189854797. The reversal of 4189854794 is 4974589814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4974589814 = 2 ⋅2487294907.

It can be written as a sum of positive squares in only one way, i.e., 2728704169 + 1461150625 = 52237^2 + 38225^2 .

It is not an unprimeable number, because it can be changed into a prime (4189854797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1047463697 + ... + 1047463700.

Almost surely, 2^4189854794 is an apocalyptic number.

4189854794 is a deficient number, since it is larger than the sum of its proper divisors (2094927400).

4189854794 is a wasteful number, since it uses less digits than its factorization.

4189854794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094927399.

The product of its digits is 11612160, while the sum is 59.

The square root of 4189854794 is about 64729.0876963363. The cubic root of 4189854794 is about 1612.1285060835.

The spelling of 4189854794 in words is "four billion, one hundred eighty-nine million, eight hundred fifty-four thousand, seven hundred ninety-four".