2484817921 has 4 divisors (see below), whose sum is σ = 2531701332. Its totient is φ = 2437934512.

The previous prime is 2484817919. The next prime is 2484817943. The reversal of 2484817921 is 1297184842.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2048467600 + 436350321 = 45260^2 + 20889^2 .

It is a cyclic number.

It is not a de Polignac number, because 2484817921 - 2¹ = 2484817919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2484817901) 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, 23441626 + ... + 23441731.

It is an arithmetic number, because the mean of its divisors is an integer number (632925333).

Almost surely, 2^2484817921 is an apocalyptic number.

It is an amenable number.

2484817921 is a deficient number, since it is larger than the sum of its proper divisors (46883411).

2484817921 is an equidigital number, since it uses as much as digits as its factorization.

2484817921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46883410.

The product of its digits is 258048, while the sum is 46.

The square root of 2484817921 is about 49847.9480119292. The cubic root of 2484817921 is about 1354.4558611797.

The spelling of 2484817921 in words is "two billion, four hundred eighty-four million, eight hundred seventeen thousand, nine hundred twenty-one".