340341878642905 has 16 divisors (see below), whose sum is σ = 410895852232320. Its totient is φ = 270616755353472.

The previous prime is 340341878642903. The next prime is 340341878642917. The reversal of 340341878642905 is 509246878143043.

It is a cyclic number.

It is not a de Polignac number, because 340341878642905 - 2¹ = 340341878642903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (340341878642903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11276820 + ... + 28422709.

It is an arithmetic number, because the mean of its divisors is an integer number (25680990764520).

It is a 1-persistent number, because it is pandigital, but 2⋅340341878642905 = 680683757285810 is not.

Almost surely, 2^{340341878642905} is an apocalyptic number.

It is an amenable number.

340341878642905 is a deficient number, since it is larger than the sum of its proper divisors (70553973589415).

340341878642905 is a wasteful number, since it uses less digits than its factorization.

340341878642905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39709968.

The product of its (nonzero) digits is 139345920, while the sum is 64.

The spelling of 340341878642905 in words is "three hundred forty trillion, three hundred forty-one billion, eight hundred seventy-eight million, six hundred forty-two thousand, nine hundred five".