2478900189 has 8 divisors (see below), whose sum is σ = 3479158240. Its totient is φ = 1565621136.

The previous prime is 2478900181. The next prime is 2478900191. The reversal of 2478900189 is 9810098742.

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

It is not a de Polignac number, because 2478900189 - 2³ = 2478900181 is a prime.

It is a super-2 number, since 2×2478900189² = 12289892294048471442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478900181) 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, 21744682 + ... + 21744795.

It is an arithmetic number, because the mean of its divisors is an integer number (434894780).

Almost surely, 2^2478900189 is an apocalyptic number.

It is an amenable number.

2478900189 is a deficient number, since it is larger than the sum of its proper divisors (1000258051).

2478900189 is a wasteful number, since it uses less digits than its factorization.

2478900189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43489499.

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 2478900189 is about 49788.5547992709. The cubic root of 2478900189 is about 1353.3797691620.

The spelling of 2478900189 in words is "two billion, four hundred seventy-eight million, nine hundred thousand, one hundred eighty-nine".