340740700673 has 2 divisors, whose sum is σ = 340740700674. Its totient is φ = 340740700672.

The previous prime is 340740700669. The next prime is 340740700757. The reversal of 340740700673 is 376007047043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340347392449 + 393308224 = 583393^2 + 19832^2 .

It is an emirp because it is prime and its reverse (376007047043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340740700673 - 2² = 340740700669 is a prime.

It is a super-2 number, since 2×340740700673² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340740700673.

It is not a weakly prime, because it can be changed into another prime (340740700613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170370350336 + 170370350337.

It is an arithmetic number, because the mean of its divisors is an integer number (170370350337).

Almost surely, 2^340740700673 is an apocalyptic number.

It is an amenable number.

340740700673 is a deficient number, since it is larger than the sum of its proper divisors (1).

340740700673 is an equidigital number, since it uses as much as digits as its factorization.

340740700673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 41.

The spelling of 340740700673 in words is "three hundred forty billion, seven hundred forty million, seven hundred thousand, six hundred seventy-three".