2227840851 has 4 divisors (see below), whose sum is σ = 2970454472. Its totient is φ = 1485227232.

The previous prime is 2227840819. The next prime is 2227840859. The reversal of 2227840851 is 1580487222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2227840851 - 2⁵ = 2227840819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2227840859) 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, 371306806 + ... + 371306811.

It is an arithmetic number, because the mean of its divisors is an integer number (742613618).

Almost surely, 2^2227840851 is an apocalyptic number.

2227840851 is a deficient number, since it is larger than the sum of its proper divisors (742613621).

2227840851 is an equidigital number, since it uses as much as digits as its factorization.

2227840851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742613620.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 2227840851 is about 47200.0090148296. The cubic root of 2227840851 is about 1306.0547641758.

The spelling of 2227840851 in words is "two billion, two hundred twenty-seven million, eight hundred forty thousand, eight hundred fifty-one".