2854217650249 has 27 divisors (see below), whose sum is σ = 3527256053493. Its totient is φ = 2302399951488.

The previous prime is 2854217650223. The next prime is 2854217650253. The reversal of 2854217650249 is 9420567124582.

The square root of 2854217650249 is 1689443.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1968849566649 + 885368083600 = 1403157^2 + 940940^2 .

It is not a de Polignac number, because 2854217650249 - 2⁷ = 2854217650121 is a prime.

It is a super-4 number, since 4×2854217650249⁴ (a number of 51 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2854217650249.

It is not an unprimeable number, because it can be changed into a prime (2854217650259) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 201036619 + ... + 201050815.

Almost surely, 2^{2854217650249} is an apocalyptic number.

2854217650249 is the 1689443-rd square number.

2854217650249 is the 844722-nd centered octagonal number.

It is an amenable number.

2854217650249 is a deficient number, since it is larger than the sum of its proper divisors (673038403244).

2854217650249 is an frugal number, since it uses more digits than its factorization.

2854217650249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28442 (or 14221 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 2854217650249 in words is "two trillion, eight hundred fifty-four billion, two hundred seventeen million, six hundred fifty thousand, two hundred forty-nine".