4545458991 has 16 divisors (see below), whose sum is σ = 6916015200. Its totient is φ = 2948405184.

The previous prime is 4545458969. The next prime is 4545458999. The reversal of 4545458991 is 1998545454.

4545458991 is a `hidden beast` number, since 4 + 5 + 4 + 54 + 589 + 9 + 1 = 666.

It is not a de Polignac number, because 4545458991 - 2⁹ = 4545458479 is a prime.

It is a super-2 number, since 2×4545458991² = 41322394877725476162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545458999) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2274006 + ... + 2276003.

It is an arithmetic number, because the mean of its divisors is an integer number (432250950).

Almost surely, 2^4545458991 is an apocalyptic number.

4545458991 is a deficient number, since it is larger than the sum of its proper divisors (2370556209).

4545458991 is a wasteful number, since it uses less digits than its factorization.

4545458991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550055 (or 4550049 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 54.

The square root of 4545458991 is about 67420.0192153636. The cubic root of 4545458991 is about 1656.5043523909.

The spelling of 4545458991 in words is "four billion, five hundred forty-five million, four hundred fifty-eight thousand, nine hundred ninety-one".