2851530749 has 8 divisors (see below), whose sum is σ = 2924398080. Its totient is φ = 2779171696.

The previous prime is 2851530743. The next prime is 2851530757. The reversal of 2851530749 is 9470351582.

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 2851530749 - 2⁴ = 2851530733 is a prime.

It is a super-2 number, since 2×2851530749² = 16262455224985002002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851530743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115694 + ... + 138159.

It is an arithmetic number, because the mean of its divisors is an integer number (365549760).

Almost surely, 2^2851530749 is an apocalyptic number.

It is an amenable number.

2851530749 is a deficient number, since it is larger than the sum of its proper divisors (72867331).

2851530749 is a wasteful number, since it uses less digits than its factorization.

2851530749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254139.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 2851530749 is about 53399.7261135298. The cubic root of 2851530749 is about 1418.0537293564.

The spelling of 2851530749 in words is "two billion, eight hundred fifty-one million, five hundred thirty thousand, seven hundred forty-nine".