2802381851 has 2 divisors, whose sum is σ = 2802381852. Its totient is φ = 2802381850.

The previous prime is 2802381811. The next prime is 2802381863. The reversal of 2802381851 is 1581832082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2802381851 is a prime.

It is not a weakly prime, because it can be changed into another prime (2802381811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401190925 + 1401190926.

It is an arithmetic number, because the mean of its divisors is an integer number (1401190926).

Almost surely, 2^2802381851 is an apocalyptic number.

2802381851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2802381851 is an equidigital number, since it uses as much as digits as its factorization.

2802381851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 2802381851 is about 52937.5278134520. The cubic root of 2802381851 is about 1409.8592906548.

The spelling of 2802381851 in words is "two billion, eight hundred two million, three hundred eighty-one thousand, eight hundred fifty-one".