2109451316 has 24 divisors (see below), whose sum is σ = 4281875136. Its totient is φ = 890556480.

The previous prime is 2109451313. The next prime is 2109451369. The reversal of 2109451316 is 6131549012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2109451313) 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 7 ways as a sum of consecutive naturals, for example, 560345 + ... + 564096.

It is an arithmetic number, because the mean of its divisors is an integer number (178411464).

Almost surely, 2^2109451316 is an apocalyptic number.

It is an amenable number.

2109451316 is an abundant number, since it is smaller than the sum of its proper divisors (2172423820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2109451316 is a wasteful number, since it uses less digits than its factorization.

2109451316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124519 (or 1124517 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2109451316 is about 45928.7634930443. The cubic root of 2109451316 is about 1282.4974263128.

The spelling of 2109451316 in words is "two billion, one hundred nine million, four hundred fifty-one thousand, three hundred sixteen".