4451214891 has 4 divisors (see below), whose sum is σ = 5934953192. Its totient is φ = 2967476592.

The previous prime is 4451214883. The next prime is 4451214919. The reversal of 4451214891 is 1984121544.

4451214891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4451214891 - 2³ = 4451214883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4451214871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741869146 + ... + 741869151.

It is an arithmetic number, because the mean of its divisors is an integer number (1483738298).

Almost surely, 2^4451214891 is an apocalyptic number.

4451214891 is a deficient number, since it is larger than the sum of its proper divisors (1483738301).

4451214891 is a wasteful number, since it uses less digits than its factorization.

4451214891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483738300.

The product of its digits is 46080, while the sum is 39.

The square root of 4451214891 is about 66717.4256922433. The cubic root of 4451214891 is about 1644.9758271655.

The spelling of 4451214891 in words is "four billion, four hundred fifty-one million, two hundred fourteen thousand, eight hundred ninety-one".