2144430423515 has 8 divisors (see below), whose sum is σ = 2575793238720. Its totient is φ = 1713893185152.

The previous prime is 2144430423497. The next prime is 2144430423529. The reversal of 2144430423515 is 5153240344412.

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 2144430423515 - 2¹² = 2144430419419 is a prime.

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, 206388494 + ... + 206398883.

It is an arithmetic number, because the mean of its divisors is an integer number (321974154840).

Almost surely, 2^{2144430423515} is an apocalyptic number.

2144430423515 is a deficient number, since it is larger than the sum of its proper divisors (431362815205).

2144430423515 is a wasteful number, since it uses less digits than its factorization.

2144430423515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412788421.

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 2144430423515 its reverse (5153240344412), we get a palindrome (7297670767927).

The spelling of 2144430423515 in words is "two trillion, one hundred forty-four billion, four hundred thirty million, four hundred twenty-three thousand, five hundred fifteen".