345405074233 has 4 divisors (see below), whose sum is σ = 345517258240. Its totient is φ = 345292890228.

The previous prime is 345405074219. The next prime is 345405074291. The reversal of 345405074233 is 332470504543.

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, and also an emirpimes, since its reverse is a distinct semiprime: 332470504543 = 24533 ⋅13551971.

It is a cyclic number.

It is not a de Polignac number, because 345405074233 - 2²¹ = 345402977081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345405074213) 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, 56087385 + ... + 56093542.

It is an arithmetic number, because the mean of its divisors is an integer number (86379314560).

Almost surely, 2^345405074233 is an apocalyptic number.

It is an amenable number.

345405074233 is a deficient number, since it is larger than the sum of its proper divisors (112184007).

345405074233 is a wasteful number, since it uses less digits than its factorization.

345405074233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112184006.

The product of its (nonzero) digits is 604800, while the sum is 40.

Adding to 345405074233 its reverse (332470504543), we get a palindrome (677875578776).

The spelling of 345405074233 in words is "three hundred forty-five billion, four hundred five million, seventy-four thousand, two hundred thirty-three".