345747679922 has 18 divisors (see below), whose sum is σ = 531631768887. Its totient is φ = 168640773600.

The previous prime is 345747679913. The next prime is 345747679961. The reversal of 345747679922 is 229976747543.

It can be written as a sum of positive squares in 5 ways, for example, as 5393286721 + 340354393201 = 73439^2 + 583399^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=415781.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34088972 + ... + 34099112.

Almost surely, 2^345747679922 is an apocalyptic number.

345747679922 is a deficient number, since it is larger than the sum of its proper divisors (185884088965).

345747679922 is an frugal number, since it uses more digits than its factorization.

345747679922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20366 (or 10184 counting only the distinct ones).

The product of its digits is 160030080, while the sum is 65.

The spelling of 345747679922 in words is "three hundred forty-five billion, seven hundred forty-seven million, six hundred seventy-nine thousand, nine hundred twenty-two".