4445499999 has 16 divisors (see below), whose sum is σ = 5978439680. Its totient is φ = 2938148640.

The previous prime is 4445499991. The next prime is 4445500019. The reversal of 4445499999 is 9999945444.

4445499999 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4445499999 - 2³ = 4445499991 is a prime.

It is a super-2 number, since 2×4445499999² = 39524940482218000002, which contains 22 as substring.

It is a Duffinian number.

4445499999 is a modest number, since divided by 99999 gives 44454 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445499991) 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, 632394 + ... + 639384.

It is an arithmetic number, because the mean of its divisors is an integer number (373652480).

Almost surely, 2^4445499999 is an apocalyptic number.

4445499999 is a deficient number, since it is larger than the sum of its proper divisors (1532939681).

4445499999 is a wasteful number, since it uses less digits than its factorization.

4445499999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8790.

The product of its digits is 75582720, while the sum is 66.

The square root of 4445499999 is about 66674.5828558380. The cubic root of 4445499999 is about 1644.2715336534.

It can be divided in two parts, 44454 and 99999, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 4445499999 in words is "four billion, four hundred forty-five million, four hundred ninety-nine thousand, nine hundred ninety-nine".