346643221425 has 48 divisors (see below), whose sum is σ = 608919240960. Its totient is φ = 173509093440.

The previous prime is 346643221411. The next prime is 346643221487. The reversal of 346643221425 is 524122346643.

It is a happy number.

346643221425 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 346643221425 - 2⁴ = 346643221409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 984247 + ... + 1289196.

It is an arithmetic number, because the mean of its divisors is an integer number (12685817520).

Almost surely, 2^346643221425 is an apocalyptic number.

It is an amenable number.

346643221425 is a deficient number, since it is larger than the sum of its proper divisors (262276019535).

346643221425 is a wasteful number, since it uses less digits than its factorization.

346643221425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273582 (or 2273577 counting only the distinct ones).

The product of its digits is 829440, while the sum is 42.

The spelling of 346643221425 in words is "three hundred forty-six billion, six hundred forty-three million, two hundred twenty-one thousand, four hundred twenty-five".