4551939072 has 176 divisors, whose sum is σ = 13706712000. Its totient is φ = 1491886080.

The previous prime is 4551939071. The next prime is 4551939083. The reversal of 4551939072 is 2709391554.

It is a happy number.

4551939072 is a `hidden beast` number, since 4 + 551 + 9 + 3 + 90 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4551939071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1685179 + ... + 1687877.

Almost surely, 2^4551939072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4551939072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6853356000).

4551939072 is an abundant number, since it is smaller than the sum of its proper divisors (9154772928).

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

4551939072 is a wasteful number, since it uses less digits than its factorization.

4551939072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2765 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 4551939072 is about 67468.0596430637. The cubic root of 4551939072 is about 1657.2911585527.

The spelling of 4551939072 in words is "four billion, five hundred fifty-one million, nine hundred thirty-nine thousand, seventy-two".