340005637457 has 4 divisors (see below), whose sum is σ = 340013070576. Its totient is φ = 339998204340.

The previous prime is 340005637399. The next prime is 340005637463. The reversal of 340005637457 is 754736500043.

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 not a de Polignac number, because 340005637457 - 2³⁰ = 338931895633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340005631457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3647519 + ... + 3739572.

It is an arithmetic number, because the mean of its divisors is an integer number (85003267644).

Almost surely, 2^340005637457 is an apocalyptic number.

It is an amenable number.

340005637457 is a deficient number, since it is larger than the sum of its proper divisors (7433119).

340005637457 is an equidigital number, since it uses as much as digits as its factorization.

340005637457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7433118.

The product of its (nonzero) digits is 1058400, while the sum is 44.

The spelling of 340005637457 in words is "three hundred forty billion, five million, six hundred thirty-seven thousand, four hundred fifty-seven".