5151444440 has 16 divisors (see below), whose sum is σ = 11590750080. Its totient is φ = 2060577760.

The previous prime is 5151444421. The next prime is 5151444443. The reversal of 5151444440 is 444441515.

It is a junction number, because it is equal to n+sod(n) for n = 5151444397 and 5151444406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151444443) 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, 64393016 + ... + 64393095.

It is an arithmetic number, because the mean of its divisors is an integer number (724421880).

Almost surely, 2^5151444440 is an apocalyptic number.

It is an amenable number.

5151444440 is an abundant number, since it is smaller than the sum of its proper divisors (6439305640).

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

5151444440 is a wasteful number, since it uses less digits than its factorization.

5151444440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128786122 (or 128786118 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 5151444440 is about 71773.5636568228. The cubic root of 5151444440 is about 1727.0689384051.

Adding to 5151444440 its reverse (444441515), we get a palindrome (5595885955).

The spelling of 5151444440 in words is "five billion, one hundred fifty-one million, four hundred forty-four thousand, four hundred forty".