2421816953 has 8 divisors (see below), whose sum is σ = 2440971720. Its totient is φ = 2402737920.

The previous prime is 2421816949. The next prime is 2421816959. The reversal of 2421816953 is 3596181242.

It can be written as a sum of positive squares in 4 ways, for example, as 32855824 + 2388961129 = 5732^2 + 48877^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2421816953 - 2² = 2421816949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421816953.

It is not an unprimeable number, because it can be changed into a prime (2421816959) 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, 46151 + ... + 83507.

It is an arithmetic number, because the mean of its divisors is an integer number (305121465).

Almost surely, 2^2421816953 is an apocalyptic number.

It is an amenable number.

2421816953 is a deficient number, since it is larger than the sum of its proper divisors (19154767).

2421816953 is a wasteful number, since it uses less digits than its factorization.

2421816953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37867.

The product of its digits is 103680, while the sum is 41.

The square root of 2421816953 is about 49211.9594509302. The cubic root of 2421816953 is about 1342.9106096967.

The spelling of 2421816953 in words is "two billion, four hundred twenty-one million, eight hundred sixteen thousand, nine hundred fifty-three".