345425306722 has 4 divisors (see below), whose sum is σ = 518137960086. Its totient is φ = 172712653360.

The previous prime is 345425306651. The next prime is 345425306753. The reversal of 345425306722 is 227603524543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227603524543 = 101 ⋅2253500243.

It can be written as a sum of positive squares in only one way, i.e., 324602528121 + 20822778601 = 569739^2 + 144301^2 .

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 as a sum of consecutive naturals, namely, 86356326679 + ... + 86356326682.

Almost surely, 2^345425306722 is an apocalyptic number.

345425306722 is a deficient number, since it is larger than the sum of its proper divisors (172712653364).

345425306722 is a wasteful number, since it uses less digits than its factorization.

345425306722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172712653363.

The product of its (nonzero) digits is 1209600, while the sum is 43.

The spelling of 345425306722 in words is "three hundred forty-five billion, four hundred twenty-five million, three hundred six thousand, seven hundred twenty-two".