2246945851 has 4 divisors (see below), whose sum is σ = 2247827152. Its totient is φ = 2246064552.

The previous prime is 2246945819. The next prime is 2246945863. The reversal of 2246945851 is 1585496422.

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

It is a cyclic number.

It is not a de Polignac number, because 2246945851 - 2⁵ = 2246945819 is a prime.

It is a super-2 number, since 2×2246945851² = 10097531314652228402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2246945891) 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, 436815 + ... + 441928.

It is an arithmetic number, because the mean of its divisors is an integer number (561956788).

Almost surely, 2^2246945851 is an apocalyptic number.

2246945851 is a deficient number, since it is larger than the sum of its proper divisors (881301).

2246945851 is an equidigital number, since it uses as much as digits as its factorization.

2246945851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881300.

The product of its digits is 691200, while the sum is 46.

The square root of 2246945851 is about 47401.9604130462. The cubic root of 2246945851 is about 1309.7775297678. Note that the first 3 decimals are identical.

The spelling of 2246945851 in words is "two billion, two hundred forty-six million, nine hundred forty-five thousand, eight hundred fifty-one".