2851998449 has 8 divisors (see below), whose sum is σ = 2871929952. Its totient is φ = 2832096960.

The previous prime is 2851998433. The next prime is 2851998451. The reversal of 2851998449 is 9448991582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2851998449 - 2⁴ = 2851998433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2851998949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203657 + ... + 217209.

It is an arithmetic number, because the mean of its divisors is an integer number (358991244).

Almost surely, 2^2851998449 is an apocalyptic number.

It is an amenable number.

2851998449 is a deficient number, since it is larger than the sum of its proper divisors (19931503).

2851998449 is a wasteful number, since it uses less digits than its factorization.

2851998449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15007.

The product of its digits is 7464960, while the sum is 59.

The square root of 2851998449 is about 53404.1051699212. The cubic root of 2851998449 is about 1418.1312535040.

The spelling of 2851998449 in words is "two billion, eight hundred fifty-one million, nine hundred ninety-eight thousand, four hundred forty-nine".