345801626563 has 4 divisors (see below), whose sum is σ = 348441333768. Its totient is φ = 343161919360.

The previous prime is 345801626557. The next prime is 345801626579. The reversal of 345801626563 is 365626108543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365626108543 = 19 ⋅19243479397.

It is a cyclic number.

It is not a de Polignac number, because 345801626563 - 2¹⁷ = 345801495491 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345801626543) 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, 1319853406 + ... + 1319853667.

It is an arithmetic number, because the mean of its divisors is an integer number (87110333442).

Almost surely, 2^345801626563 is an apocalyptic number.

345801626563 is a deficient number, since it is larger than the sum of its proper divisors (2639707205).

345801626563 is a wasteful number, since it uses less digits than its factorization.

345801626563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639707204.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 345801626563 in words is "three hundred forty-five billion, eight hundred one million, six hundred twenty-six thousand, five hundred sixty-three".