2421378211 has 8 divisors (see below), whose sum is σ = 2792678240. Its totient is φ = 2056425408.

The previous prime is 2421378209. The next prime is 2421378217. The reversal of 2421378211 is 1128731242.

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 2421378211 - 2¹ = 2421378209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421378217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1585986 + ... + 1587511.

It is an arithmetic number, because the mean of its divisors is an integer number (349084780).

Almost surely, 2^2421378211 is an apocalyptic number.

2421378211 is a deficient number, since it is larger than the sum of its proper divisors (371300029).

2421378211 is a wasteful number, since it uses less digits than its factorization.

2421378211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173613.

The product of its digits is 5376, while the sum is 31.

The square root of 2421378211 is about 49207.5015724229. The cubic root of 2421378211 is about 1342.8295098611.

The spelling of 2421378211 in words is "two billion, four hundred twenty-one million, three hundred seventy-eight thousand, two hundred eleven".