2421739027189 has 4 divisors (see below), whose sum is σ = 2422213232224. Its totient is φ = 2421264822156.

The previous prime is 2421739027187. The next prime is 2421739027243. The reversal of 2421739027189 is 9817209371242.

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 2421739027189 - 2¹ = 2421739027187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421739027187) 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, 237094857 + ... + 237105070.

It is an arithmetic number, because the mean of its divisors is an integer number (605553308056).

Almost surely, 2^{2421739027189} is an apocalyptic number.

It is an amenable number.

2421739027189 is a deficient number, since it is larger than the sum of its proper divisors (474205035).

2421739027189 is an equidigital number, since it uses as much as digits as its factorization.

2421739027189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474205034.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 2421739027189 in words is "two trillion, four hundred twenty-one billion, seven hundred thirty-nine million, twenty-seven thousand, one hundred eighty-nine".