340847442447493 has 2 divisors, whose sum is σ = 340847442447494. Its totient is φ = 340847442447492.

The previous prime is 340847442447383. The next prime is 340847442447521. The reversal of 340847442447493 is 394744244748043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330319247547969 + 10528194899524 = 18174687^2 + 3244718^2 .

It is a cyclic number.

It is not a de Polignac number, because 340847442447493 - 2⁹ = 340847442446981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340847442448493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170423721223746 + 170423721223747.

It is an arithmetic number, because the mean of its divisors is an integer number (170423721223747).

Almost surely, 2^{340847442447493} is an apocalyptic number.

It is an amenable number.

340847442447493 is a deficient number, since it is larger than the sum of its proper divisors (1).

340847442447493 is an equidigital number, since it uses as much as digits as its factorization.

340847442447493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1040449536, while the sum is 67.

The spelling of 340847442447493 in words is "three hundred forty trillion, eight hundred forty-seven billion, four hundred forty-two million, four hundred forty-seven thousand, four hundred ninety-three".