2940456991 has 2 divisors, whose sum is σ = 2940456992. Its totient is φ = 2940456990.

The previous prime is 2940456979. The next prime is 2940457021. The reversal of 2940456991 is 1996540492.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2940456991 - 2¹³ = 2940448799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2940456931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1470228495 + 1470228496.

It is an arithmetic number, because the mean of its divisors is an integer number (1470228496).

Almost surely, 2^2940456991 is an apocalyptic number.

2940456991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2940456991 is an equidigital number, since it uses as much as digits as its factorization.

2940456991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 2940456991 is about 54225.9807749016. The cubic root of 2940456991 is about 1432.6439732776.

The spelling of 2940456991 in words is "two billion, nine hundred forty million, four hundred fifty-six thousand, nine hundred ninety-one".