2117442465 has 64 divisors (see below), whose sum is σ = 3858382080. Its totient is φ = 1115218368.

The previous prime is 2117442419. The next prime is 2117442487. The reversal of 2117442465 is 5642447112.

2117442465 is a `hidden beast` number, since 2 + 1 + 174 + 424 + 65 = 666.

It is not a de Polignac number, because 2117442465 - 2¹² = 2117438369 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 906439 + ... + 908771.

It is an arithmetic number, because the mean of its divisors is an integer number (60287220).

Almost surely, 2^2117442465 is an apocalyptic number.

It is an amenable number.

2117442465 is a deficient number, since it is larger than the sum of its proper divisors (1740939615).

2117442465 is an frugal number, since it uses more digits than its factorization.

2117442465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442 (or 2424 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2117442465 is about 46015.6762962363. The cubic root of 2117442465 is about 1284.1148632941.

Adding to 2117442465 its reverse (5642447112), we get a palindrome (7759889577).

The spelling of 2117442465 in words is "two billion, one hundred seventeen million, four hundred forty-two thousand, four hundred sixty-five".