4550941891 has 4 divisors (see below), whose sum is σ = 4554694912. Its totient is φ = 4547188872.

The previous prime is 4550941849. The next prime is 4550941981. The reversal of 4550941891 is 1981490554.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 4550941891 - 2⁹ = 4550941379 is a prime.

It is a super-2 number, since 2×4550941891² = 41422144190517311762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4550921891) 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, 1874691 + ... + 1877116.

It is an arithmetic number, because the mean of its divisors is an integer number (1138673728).

Almost surely, 2^4550941891 is an apocalyptic number.

4550941891 is a deficient number, since it is larger than the sum of its proper divisors (3753021).

4550941891 is a wasteful number, since it uses less digits than its factorization.

4550941891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753020.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 4550941891 is about 67460.6692154770. The cubic root of 4550941891 is about 1657.1701302816.

The spelling of 4550941891 in words is "four billion, five hundred fifty million, nine hundred forty-one thousand, eight hundred ninety-one".