545323415321 has 4 divisors (see below), whose sum is σ = 546278448144. Its totient is φ = 544368382500.

The previous prime is 545323415249. The next prime is 545323415327. The reversal of 545323415321 is 123514323545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 545323415321 - 2²⁶ = 545256306457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545323415327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477515555 + ... + 477516696.

It is an arithmetic number, because the mean of its divisors is an integer number (136569612036).

Almost surely, 2^545323415321 is an apocalyptic number.

It is an amenable number.

545323415321 is a deficient number, since it is larger than the sum of its proper divisors (955032823).

545323415321 is an equidigital number, since it uses as much as digits as its factorization.

545323415321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955032822.

The product of its digits is 216000, while the sum is 38.

Adding to 545323415321 its reverse (123514323545), we get a palindrome (668837738866).

The spelling of 545323415321 in words is "five hundred forty-five billion, three hundred twenty-three million, four hundred fifteen thousand, three hundred twenty-one".