2124434440015 has 4 divisors (see below), whose sum is σ = 2549321328024. Its totient is φ = 1699547552008.

The previous prime is 2124434440013. The next prime is 2124434440021. The reversal of 2124434440015 is 5100444344212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2124434440015 - 2¹ = 2124434440013 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 (2124434440013) 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, 212443443997 + ... + 212443444006.

It is an arithmetic number, because the mean of its divisors is an integer number (637330332006).

Almost surely, 2^{2124434440015} is an apocalyptic number.

2124434440015 is a deficient number, since it is larger than the sum of its proper divisors (424886888009).

2124434440015 is an equidigital number, since it uses as much as digits as its factorization.

2124434440015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424886888008.

The product of its (nonzero) digits is 61440, while the sum is 34.

Adding to 2124434440015 its reverse (5100444344212), we get a palindrome (7224878784227).

The spelling of 2124434440015 in words is "two trillion, one hundred twenty-four billion, four hundred thirty-four million, four hundred forty thousand, fifteen".