2117418511 has 4 divisors (see below), whose sum is σ = 2280296872. Its totient is φ = 1954540152.

The previous prime is 2117418497. The next prime is 2117418533. The reversal of 2117418511 is 1158147112.

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 2117418511 - 2²¹ = 2115321359 is a prime.

It is a super-2 number, since 2×2117418511² = 8966922301450914242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117418581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81439161 + ... + 81439186.

It is an arithmetic number, because the mean of its divisors is an integer number (570074218).

Almost surely, 2^2117418511 is an apocalyptic number.

2117418511 is a deficient number, since it is larger than the sum of its proper divisors (162878361).

2117418511 is a wasteful number, since it uses less digits than its factorization.

2117418511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162878360.

The product of its digits is 2240, while the sum is 31.

The square root of 2117418511 is about 46015.4160146358. The cubic root of 2117418511 is about 1284.1100210053.

The spelling of 2117418511 in words is "two billion, one hundred seventeen million, four hundred eighteen thousand, five hundred eleven".