2947457911 has 2 divisors, whose sum is σ = 2947457912. Its totient is φ = 2947457910.

The previous prime is 2947457881. The next prime is 2947457921. The reversal of 2947457911 is 1197547492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2947457911 - 2⁵ = 2947457879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2947457921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473728955 + 1473728956.

It is an arithmetic number, because the mean of its divisors is an integer number (1473728956).

Almost surely, 2^2947457911 is an apocalyptic number.

2947457911 is a deficient number, since it is larger than the sum of its proper divisors (1).

2947457911 is an equidigital number, since it uses as much as digits as its factorization.

2947457911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The square root of 2947457911 is about 54290.4955862442. The cubic root of 2947457911 is about 1433.7800638467.

The spelling of 2947457911 in words is "two billion, nine hundred forty-seven million, four hundred fifty-seven thousand, nine hundred eleven".