3447265761491 has 2 divisors, whose sum is σ = 3447265761492. Its totient is φ = 3447265761490.

The previous prime is 3447265761431. The next prime is 3447265761493. The reversal of 3447265761491 is 1941675627443.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3447265761491 is a prime.

Together with 3447265761493, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3447265761491.

It is not a weakly prime, because it can be changed into another prime (3447265761493) 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, 1723632880745 + 1723632880746.

It is an arithmetic number, because the mean of its divisors is an integer number (1723632880746).

Almost surely, 2^{3447265761491} is an apocalyptic number.

3447265761491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3447265761491 is an equidigital number, since it uses as much as digits as its factorization.

3447265761491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 59.

The spelling of 3447265761491 in words is "three trillion, four hundred forty-seven billion, two hundred sixty-five million, seven hundred sixty-one thousand, four hundred ninety-one".