345649705399 has 4 divisors (see below), whose sum is σ = 345681130536. Its totient is φ = 345618280264.

The previous prime is 345649705391. The next prime is 345649705507. The reversal of 345649705399 is 993507946543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345649705399 - 2³ = 345649705391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345649705399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345649705391) 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, 15696064 + ... + 15718069.

It is an arithmetic number, because the mean of its divisors is an integer number (86420282634).

Almost surely, 2^345649705399 is an apocalyptic number.

345649705399 is a deficient number, since it is larger than the sum of its proper divisors (31425137).

345649705399 is a wasteful number, since it uses less digits than its factorization.

345649705399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31425136.

The product of its (nonzero) digits is 110224800, while the sum is 64.

The spelling of 345649705399 in words is "three hundred forty-five billion, six hundred forty-nine million, seven hundred five thousand, three hundred ninety-nine".