2156802433 has 2 divisors, whose sum is σ = 2156802434. Its totient is φ = 2156802432.

The previous prime is 2156802421. The next prime is 2156802449. The reversal of 2156802433 is 3342086512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1727815489 + 428986944 = 41567^2 + 20712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2156802433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2156802133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078401216 + 1078401217.

It is an arithmetic number, because the mean of its divisors is an integer number (1078401217).

Almost surely, 2^2156802433 is an apocalyptic number.

It is an amenable number.

2156802433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2156802433 is an equidigital number, since it uses as much as digits as its factorization.

2156802433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2156802433 is about 46441.3870701554. The cubic root of 2156802433 is about 1292.0226333311.

Adding to 2156802433 its reverse (3342086512), we get a palindrome (5498888945).

The spelling of 2156802433 in words is "two billion, one hundred fifty-six million, eight hundred two thousand, four hundred thirty-three".