345683353457 has 4 divisors (see below), whose sum is σ = 372274380660. Its totient is φ = 319092326256.

The previous prime is 345683353403. The next prime is 345683353493. The reversal of 345683353457 is 754353386543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 754353386543 = 90911 ⋅8297713.

It can be written as a sum of positive squares in 2 ways, for example, as 99896452096 + 245786901361 = 316064^2 + 495769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345683353457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345683359457) 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, 13295513582 + ... + 13295513607.

It is an arithmetic number, because the mean of its divisors is an integer number (93068595165).

Almost surely, 2^345683353457 is an apocalyptic number.

It is an amenable number.

345683353457 is a deficient number, since it is larger than the sum of its proper divisors (26591027203).

345683353457 is a wasteful number, since it uses less digits than its factorization.

345683353457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26591027202.

The product of its digits is 54432000, while the sum is 56.

The spelling of 345683353457 in words is "three hundred forty-five billion, six hundred eighty-three million, three hundred fifty-three thousand, four hundred fifty-seven".