345203917815 has 8 divisors (see below), whose sum is σ = 552326268528. Its totient is φ = 184108756160.

The previous prime is 345203917813. The next prime is 345203917901. The reversal of 345203917815 is 518719302543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345203917815 - 2¹ = 345203917813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345203917813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11506797246 + ... + 11506797275.

It is an arithmetic number, because the mean of its divisors is an integer number (69040783566).

Almost surely, 2^345203917815 is an apocalyptic number.

345203917815 is a deficient number, since it is larger than the sum of its proper divisors (207122350713).

345203917815 is a wasteful number, since it uses less digits than its factorization.

345203917815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23013594529.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 345203917815 in words is "three hundred forty-five billion, two hundred three million, nine hundred seventeen thousand, eight hundred fifteen".