345423747605 has 8 divisors (see below), whose sum is σ = 418612542264. Its totient is φ = 273602968000.

The previous prime is 345423747583. The next prime is 345423747629. The reversal of 345423747605 is 506747324543.

It can be written as a sum of positive squares in 4 ways, for example, as 215390666404 + 130033081201 = 464102^2 + 360601^2 .

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

It is not a de Polignac number, because 345423747605 - 2¹⁶ = 345423682069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 342003206 + ... + 342004215.

It is an arithmetic number, because the mean of its divisors is an integer number (52326567783).

Almost surely, 2^345423747605 is an apocalyptic number.

It is an amenable number.

345423747605 is a deficient number, since it is larger than the sum of its proper divisors (73188794659).

345423747605 is a wasteful number, since it uses less digits than its factorization.

345423747605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684007527.

The product of its (nonzero) digits is 8467200, while the sum is 50.

The spelling of 345423747605 in words is "three hundred forty-five billion, four hundred twenty-three million, seven hundred forty-seven thousand, six hundred five".