345448203815 has 32 divisors (see below), whose sum is σ = 487142510400. Its totient is φ = 231845944320.

The previous prime is 345448203811. The next prime is 345448203823. The reversal of 345448203815 is 518302844543.

It is not a de Polignac number, because 345448203815 - 2² = 345448203811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 345448203815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345448203811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2630741 + ... + 2758929.

It is an arithmetic number, because the mean of its divisors is an integer number (15223203450).

Almost surely, 2^345448203815 is an apocalyptic number.

345448203815 is a deficient number, since it is larger than the sum of its proper divisors (141694306585).

345448203815 is a wasteful number, since it uses less digits than its factorization.

345448203815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131987.

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 345448203815 in words is "three hundred forty-five billion, four hundred forty-eight million, two hundred three thousand, eight hundred fifteen".