2856455963 has 2 divisors, whose sum is σ = 2856455964. Its totient is φ = 2856455962.

The previous prime is 2856455947. The next prime is 2856455969. The reversal of 2856455963 is 3695546582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2856455963 - 2⁴ = 2856455947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2856455969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428227981 + 1428227982.

It is an arithmetic number, because the mean of its divisors is an integer number (1428227982).

Almost surely, 2^2856455963 is an apocalyptic number.

2856455963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2856455963 is an equidigital number, since it uses as much as digits as its factorization.

2856455963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776000, while the sum is 53.

The square root of 2856455963 is about 53445.8226898979. The cubic root of 2856455963 is about 1418.8696888604.

The spelling of 2856455963 in words is "two billion, eight hundred fifty-six million, four hundred fifty-five thousand, nine hundred sixty-three".