4451557372 has 12 divisors (see below), whose sum is σ = 8248474080. Its totient is φ = 2094850496.

The previous prime is 4451557349. The next prime is 4451557387. The reversal of 4451557372 is 2737551544.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32731972 + ... + 32732107.

It is an arithmetic number, because the mean of its divisors is an integer number (687372840).

Almost surely, 2^4451557372 is an apocalyptic number.

It is an amenable number.

4451557372 is a deficient number, since it is larger than the sum of its proper divisors (3796916708).

4451557372 is a wasteful number, since it uses less digits than its factorization.

4451557372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65464100 (or 65464098 counting only the distinct ones).

The product of its digits is 588000, while the sum is 43.

The square root of 4451557372 is about 66719.9922961626. The cubic root of 4451557372 is about 1645.0180147878.

The spelling of 4451557372 in words is "four billion, four hundred fifty-one million, five hundred fifty-seven thousand, three hundred seventy-two".