2180045451 has 8 divisors (see below), whose sum is σ = 2913442000. Its totient is φ = 1450006272.

The previous prime is 2180045447. The next prime is 2180045467. The reversal of 2180045451 is 1545400812.

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

It is not a de Polignac number, because 2180045451 - 2² = 2180045447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180045411) 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, 837826 + ... + 840423.

It is an arithmetic number, because the mean of its divisors is an integer number (364180250).

Almost surely, 2^2180045451 is an apocalyptic number.

2180045451 is a deficient number, since it is larger than the sum of its proper divisors (733396549).

2180045451 is a wasteful number, since it uses less digits than its factorization.

2180045451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678685.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 2180045451 is about 46690.9568439114. The cubic root of 2180045451 is about 1296.6472681509.

The spelling of 2180045451 in words is "two billion, one hundred eighty million, forty-five thousand, four hundred fifty-one".