345409949807 has 4 divisors (see below), whose sum is σ = 371979945960. Its totient is φ = 318839953656.

The previous prime is 345409949789. The next prime is 345409949837. The reversal of 345409949807 is 708949904543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708949904543 = 59 ⋅12016100077.

It is a cyclic number.

It is not a de Polignac number, because 345409949807 - 2¹⁴ = 345409933423 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 345409949807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345409949837) 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, 13284998057 + ... + 13284998082.

It is an arithmetic number, because the mean of its divisors is an integer number (92994986490).

Almost surely, 2^345409949807 is an apocalyptic number.

345409949807 is a deficient number, since it is larger than the sum of its proper divisors (26569996153).

345409949807 is a wasteful number, since it uses less digits than its factorization.

345409949807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26569996152.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 345409949807 in words is "three hundred forty-five billion, four hundred nine million, nine hundred forty-nine thousand, eight hundred seven".