4551451242 has 64 divisors (see below), whose sum is σ = 10426195584. Its totient is φ = 1312174080.

The previous prime is 4551451207. The next prime is 4551451243. The reversal of 4551451242 is 2421541554.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4551451243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293442 + ... + 308562.

It is an arithmetic number, because the mean of its divisors is an integer number (162909306).

Almost surely, 2^4551451242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4551451242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5213097792).

4551451242 is an abundant number, since it is smaller than the sum of its proper divisors (5874744342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4551451242 is a wasteful number, since it uses less digits than its factorization.

4551451242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15383.

The product of its digits is 32000, while the sum is 33.

The square root of 4551451242 is about 67464.4442799316. Note that the first 3 decimals coincide. The cubic root of 4551451242 is about 1657.2319526322.

Adding to 4551451242 its reverse (2421541554), we get a palindrome (6972992796).

The spelling of 4551451242 in words is "four billion, five hundred fifty-one million, four hundred fifty-one thousand, two hundred forty-two".