2591571946913 has 2 divisors, whose sum is σ = 2591571946914. Its totient is φ = 2591571946912.

The previous prime is 2591571946819. The next prime is 2591571947017. The reversal of 2591571946913 is 3196491751952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2270636100769 + 320935846144 = 1506863^2 + 566512^2 .

It is a cyclic number.

It is not a de Polignac number, because 2591571946913 - 2¹⁴ = 2591571930529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2591571945913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295785973456 + 1295785973457.

It is an arithmetic number, because the mean of its divisors is an integer number (1295785973457).

Almost surely, 2^{2591571946913} is an apocalyptic number.

It is an amenable number.

2591571946913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591571946913 is an equidigital number, since it uses as much as digits as its factorization.

2591571946913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18370800, while the sum is 62.

The spelling of 2591571946913 in words is "two trillion, five hundred ninety-one billion, five hundred seventy-one million, nine hundred forty-six thousand, nine hundred thirteen".