345243342777 has 4 divisors (see below), whose sum is σ = 460324457040. Its totient is φ = 230162228516.

The previous prime is 345243342749. The next prime is 345243342797. The reversal of 345243342777 is 777243342543.

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 345243342777 - 2¹² = 345243338681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345243342727) 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, 57540557127 + ... + 57540557132.

It is an arithmetic number, because the mean of its divisors is an integer number (115081114260).

Almost surely, 2^345243342777 is an apocalyptic number.

It is an amenable number.

345243342777 is a deficient number, since it is larger than the sum of its proper divisors (115081114263).

345243342777 is a wasteful number, since it uses less digits than its factorization.

345243342777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115081114262.

The product of its digits is 11854080, while the sum is 51.

The spelling of 345243342777 in words is "three hundred forty-five billion, two hundred forty-three million, three hundred forty-two thousand, seven hundred seventy-seven".