340748078417 has 4 divisors (see below), whose sum is σ = 340963879920. Its totient is φ = 340532276916.

The previous prime is 340748078399. The next prime is 340748078477. The reversal of 340748078417 is 714870847043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340748078417 is a prime.

It is a super-2 number, since 2×340748078417² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340748078477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107898383 + ... + 107901540.

It is an arithmetic number, because the mean of its divisors is an integer number (85240969980).

Almost surely, 2^340748078417 is an apocalyptic number.

It is an amenable number.

340748078417 is a deficient number, since it is larger than the sum of its proper divisors (215801503).

340748078417 is a wasteful number, since it uses less digits than its factorization.

340748078417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215801502.

The product of its (nonzero) digits is 4214784, while the sum is 53.

The spelling of 340748078417 in words is "three hundred forty billion, seven hundred forty-eight million, seventy-eight thousand, four hundred seventeen".