2080455891 has 8 divisors (see below), whose sum is σ = 2799866304. Its totient is φ = 1374008040.

The previous prime is 2080455887. The next prime is 2080455899. The reversal of 2080455891 is 1985540802.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2080455891 - 2² = 2080455887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2080455899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3240265 + ... + 3240906.

It is an arithmetic number, because the mean of its divisors is an integer number (349983288).

Almost surely, 2^2080455891 is an apocalyptic number.

2080455891 is a deficient number, since it is larger than the sum of its proper divisors (719410413).

2080455891 is a wasteful number, since it uses less digits than its factorization.

2080455891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6481281.

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 2080455891 is about 45612.0147658487. The cubic root of 2080455891 is about 1276.5941134165.

The spelling of 2080455891 in words is "two billion, eighty million, four hundred fifty-five thousand, eight hundred ninety-one".