4551742011321 has 12 divisors (see below), whose sum is σ = 6574762138672. Its totient is φ = 3034483745976.

The previous prime is 4551742011319. The next prime is 4551742011367. The reversal of 4551742011321 is 1231102471554.

4551742011321 is a `hidden beast` number, since 4 + 5 + 517 + 4 + 2 + 0 + 1 + 132 + 1 = 666.

It is not a de Polignac number, because 4551742011321 - 2¹ = 4551742011319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4551742011371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2336670 + ... + 3816216.

Almost surely, 2^{4551742011321} is an apocalyptic number.

It is an amenable number.

4551742011321 is a deficient number, since it is larger than the sum of its proper divisors (2023020127351).

4551742011321 is a wasteful number, since it uses less digits than its factorization.

4551742011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821380 (or 1821377 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

Adding to 4551742011321 its reverse (1231102471554), we get a palindrome (5782844482875).

The spelling of 4551742011321 in words is "four trillion, five hundred fifty-one billion, seven hundred forty-two million, eleven thousand, three hundred twenty-one".