4194498689 has 4 divisors (see below), whose sum is σ = 4441233924. Its totient is φ = 3947763456.

The previous prime is 4194498667. The next prime is 4194498709. The reversal of 4194498689 is 9868944914.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9868944914 = 2 ⋅4934472457.

It can be written as a sum of positive squares in 2 ways, for example, as 1884254464 + 2310244225 = 43408^2 + 48065^2 .

It is a cyclic number.

It is not a de Polignac number, because 4194498689 - 2¹² = 4194494593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4194498629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123367592 + ... + 123367625.

It is an arithmetic number, because the mean of its divisors is an integer number (1110308481).

Almost surely, 2^4194498689 is an apocalyptic number.

It is an amenable number.

4194498689 is a deficient number, since it is larger than the sum of its proper divisors (246735235).

4194498689 is a wasteful number, since it uses less digits than its factorization.

4194498689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246735234.

The product of its digits is 17915904, while the sum is 62.

The square root of 4194498689 is about 64764.9495406273. The cubic root of 4194498689 is about 1612.7238959502.

The spelling of 4194498689 in words is "four billion, one hundred ninety-four million, four hundred ninety-eight thousand, six hundred eighty-nine".