1849799979 has 6 divisors (see below), whose sum is σ = 2671933316. Its totient is φ = 1233199980.

The previous prime is 1849799947. The next prime is 1849799983. The reversal of 1849799979 is 9799979481.

It is not a de Polignac number, because 1849799979 - 2⁵ = 1849799947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1849799999) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102766657 + ... + 102766674.

Almost surely, 2^1849799979 is an apocalyptic number.

1849799979 is a deficient number, since it is larger than the sum of its proper divisors (822133337).

1849799979 is a wasteful number, since it uses less digits than its factorization.

1849799979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205533337 (or 205533334 counting only the distinct ones).

The product of its digits is 92588832, while the sum is 72.

The square root of 1849799979 is about 43009.3010754651. The cubic root of 1849799979 is about 1227.5567820778.

The spelling of 1849799979 in words is "one billion, eight hundred forty-nine million, seven hundred ninety-nine thousand, nine hundred seventy-nine".