321450553542434 has 64 divisors (see below), whose sum is σ = 496215910270080. Its totient is φ = 156083042119680.

The previous prime is 321450553542421. The next prime is 321450553542449. The reversal of 321450553542434 is 434245355054123.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98634718697 + ... + 98634721955.

It is an arithmetic number, because the mean of its divisors is an integer number (7753373597970).

Almost surely, 2^{321450553542434} is an apocalyptic number.

321450553542434 is a deficient number, since it is larger than the sum of its proper divisors (174765356727646).

321450553542434 is a wasteful number, since it uses less digits than its factorization.

321450553542434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875.

The product of its (nonzero) digits is 17280000, while the sum is 50.

The spelling of 321450553542434 in words is "three hundred twenty-one trillion, four hundred fifty billion, five hundred fifty-three million, five hundred forty-two thousand, four hundred thirty-four".