2144672817 has 12 divisors (see below), whose sum is σ = 3326431536. Its totient is φ = 1225527240.

The previous prime is 2144672771. The next prime is 2144672819. The reversal of 2144672817 is 7182764412.

It is not a de Polignac number, because 2144672817 - 2¹¹ = 2144670769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2144672819) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7294659 + ... + 7294952.

It is an arithmetic number, because the mean of its divisors is an integer number (277202628).

Almost surely, 2^2144672817 is an apocalyptic number.

It is an amenable number.

2144672817 is a deficient number, since it is larger than the sum of its proper divisors (1181758719).

2144672817 is a wasteful number, since it uses less digits than its factorization.

2144672817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14589628 (or 14589621 counting only the distinct ones).

The product of its digits is 150528, while the sum is 42.

The square root of 2144672817 is about 46310.6123582921. The cubic root of 2144672817 is about 1289.5960149564.

The spelling of 2144672817 in words is "two billion, one hundred forty-four million, six hundred seventy-two thousand, eight hundred seventeen".