2987261791 has 2 divisors, whose sum is σ = 2987261792. Its totient is φ = 2987261790.

The previous prime is 2987261747. The next prime is 2987261801. The reversal of 2987261791 is 1971627892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2987261791 - 2⁷ = 2987261663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2987261741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1493630895 + 1493630896.

It is an arithmetic number, because the mean of its divisors is an integer number (1493630896).

Almost surely, 2^2987261791 is an apocalyptic number.

2987261791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2987261791 is an equidigital number, since it uses as much as digits as its factorization.

2987261791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 52.

The square root of 2987261791 is about 54655.8486440381. The cubic root of 2987261791 is about 1440.2053769250.

The spelling of 2987261791 in words is "two billion, nine hundred eighty-seven million, two hundred sixty-one thousand, seven hundred ninety-one".