2591009949427 has 2 divisors, whose sum is σ = 2591009949428. Its totient is φ = 2591009949426.

The previous prime is 2591009949397. The next prime is 2591009949559. The reversal of 2591009949427 is 7249499001952.

2591009949427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2591009949427 is a prime.

It is not a weakly prime, because it can be changed into another prime (2591009944427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295504974713 + 1295504974714.

It is an arithmetic number, because the mean of its divisors is an integer number (1295504974714).

Almost surely, 2^{2591009949427} is an apocalyptic number.

2591009949427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591009949427 is an equidigital number, since it uses as much as digits as its factorization.

2591009949427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 2591009949427 in words is "two trillion, five hundred ninety-one billion, nine million, nine hundred forty-nine thousand, four hundred twenty-seven".