345285187306 has 16 divisors (see below), whose sum is σ = 518243498280. Its totient is φ = 172537393600.

The previous prime is 345285187297. The next prime is 345285187337. The reversal of 345285187306 is 603781582543.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 302950067281 + 42335120025 = 550409^2 + 205755^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 28987680 + ... + 28999588.

Almost surely, 2^345285187306 is an apocalyptic number.

345285187306 is a deficient number, since it is larger than the sum of its proper divisors (172958310974).

345285187306 is a wasteful number, since it uses less digits than its factorization.

345285187306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19529.

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 345285187306 in words is "three hundred forty-five billion, two hundred eighty-five million, one hundred eighty-seven thousand, three hundred six".