340043751815 has 4 divisors (see below), whose sum is σ = 408052502184. Its totient is φ = 272035001448.

The previous prime is 340043751799. The next prime is 340043751841. The reversal of 340043751815 is 518157340043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 518157340043 = 7 ⋅74022477149.

It is a cyclic number.

It is not a de Polignac number, because 340043751815 - 2⁴ = 340043751799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34004375177 + ... + 34004375186.

It is an arithmetic number, because the mean of its divisors is an integer number (102013125546).

Almost surely, 2^340043751815 is an apocalyptic number.

340043751815 is a deficient number, since it is larger than the sum of its proper divisors (68008750369).

340043751815 is an equidigital number, since it uses as much as digits as its factorization.

340043751815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68008750368.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 340043751815 in words is "three hundred forty billion, forty-three million, seven hundred fifty-one thousand, eight hundred fifteen".