4451980947 has 24 divisors (see below), whose sum is σ = 6292839168. Its totient is φ = 2798888400.

The previous prime is 4451980943. The next prime is 4451980979. The reversal of 4451980947 is 7490891544.

It is not a de Polignac number, because 4451980947 - 2² = 4451980943 is a prime.

It is a super-3 number, since 3×4451980947³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4451980947.

It is not an unprimeable number, because it can be changed into a prime (4451980943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92922 + ... + 132432.

It is an arithmetic number, because the mean of its divisors is an integer number (262201632).

Almost surely, 2^4451980947 is an apocalyptic number.

4451980947 is a deficient number, since it is larger than the sum of its proper divisors (1840858221).

4451980947 is a wasteful number, since it uses less digits than its factorization.

4451980947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39631 (or 39608 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 4451980947 is about 66723.1664941046. The cubic root of 4451980947 is about 1645.0701887686.

The spelling of 4451980947 in words is "four billion, four hundred fifty-one million, nine hundred eighty thousand, nine hundred forty-seven".