345306327621 has 16 divisors (see below), whose sum is σ = 462093339648. Its totient is φ = 229361932800.

The previous prime is 345306327581. The next prime is 345306327643. The reversal of 345306327621 is 126723603543.

It is not a de Polignac number, because 345306327621 - 2⁶ = 345306327557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345306347621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14176365 + ... + 14200701.

It is an arithmetic number, because the mean of its divisors is an integer number (28880833728).

Almost surely, 2^345306327621 is an apocalyptic number.

It is an amenable number.

345306327621 is a deficient number, since it is larger than the sum of its proper divisors (116787012027).

345306327621 is a wasteful number, since it uses less digits than its factorization.

345306327621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41452.

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 345306327621 in words is "three hundred forty-five billion, three hundred six million, three hundred twenty-seven thousand, six hundred twenty-one".