340555555555427 has 2 divisors, whose sum is σ = 340555555555428. Its totient is φ = 340555555555426.

The previous prime is 340555555555381. The next prime is 340555555555433. The reversal of 340555555555427 is 724555555555043.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340555555555427 - 2³⁶ = 340486836078691 is a prime.

It is not a weakly prime, because it can be changed into another prime (340555555551427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170277777777713 + 170277777777714.

It is an arithmetic number, because the mean of its divisors is an integer number (170277777777714).

Almost surely, 2^{340555555555427} is an apocalyptic number.

340555555555427 is a deficient number, since it is larger than the sum of its proper divisors (1).

340555555555427 is an equidigital number, since it uses as much as digits as its factorization.

340555555555427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312500000, while the sum is 65.

The spelling of 340555555555427 in words is "three hundred forty trillion, five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, four hundred twenty-seven".