2421073653 has 4 divisors (see below), whose sum is σ = 3228098208. Its totient is φ = 1614049100.

The previous prime is 2421073643. The next prime is 2421073661. The reversal of 2421073653 is 3563701242.

2421073653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2421073653 - 2¹⁴ = 2421057269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421073643) 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, 403512273 + ... + 403512278.

It is an arithmetic number, because the mean of its divisors is an integer number (807024552).

Almost surely, 2^2421073653 is an apocalyptic number.

It is an amenable number.

2421073653 is a deficient number, since it is larger than the sum of its proper divisors (807024555).

2421073653 is an equidigital number, since it uses as much as digits as its factorization.

2421073653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807024554.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 2421073653 is about 49204.4068453223. The cubic root of 2421073653 is about 1342.7732076808.

Adding to 2421073653 its reverse (3563701242), we get a palindrome (5984774895).

The spelling of 2421073653 in words is "two billion, four hundred twenty-one million, seventy-three thousand, six hundred fifty-three".