2421623155 has 8 divisors (see below), whose sum is σ = 3321083232. Its totient is φ = 1660541568.

The previous prime is 2421623137. The next prime is 2421623179. The reversal of 2421623155 is 5513261242.

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

It is not a de Polignac number, because 2421623155 - 2¹¹ = 2421621107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34594582 + ... + 34594651.

It is an arithmetic number, because the mean of its divisors is an integer number (415135404).

Almost surely, 2^2421623155 is an apocalyptic number.

2421623155 is a deficient number, since it is larger than the sum of its proper divisors (899460077).

2421623155 is an equidigital number, since it uses as much as digits as its factorization.

2421623155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69189245.

The product of its digits is 14400, while the sum is 31.

The square root of 2421623155 is about 49209.9903982921. The cubic root of 2421623155 is about 1342.8747880612.

Adding to 2421623155 its reverse (5513261242), we get a palindrome (7934884397).

The spelling of 2421623155 in words is "two billion, four hundred twenty-one million, six hundred twenty-three thousand, one hundred fifty-five".