2118257471 has 8 divisors (see below), whose sum is σ = 2349993600. Its totient is φ = 1893049240.

The previous prime is 2118257441. The next prime is 2118257483. The reversal of 2118257471 is 1747528112.

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 2118257471 - 2¹⁰ = 2118256447 is a prime.

It is a super-3 number, since 3×2118257471³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118257441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1631291 + ... + 1632588.

It is an arithmetic number, because the mean of its divisors is an integer number (293749200).

Almost surely, 2^2118257471 is an apocalyptic number.

2118257471 is a deficient number, since it is larger than the sum of its proper divisors (231736129).

2118257471 is a wasteful number, since it uses less digits than its factorization.

2118257471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263949.

The product of its digits is 31360, while the sum is 38.

The square root of 2118257471 is about 46024.5311871832. The cubic root of 2118257471 is about 1284.2795945819.

The spelling of 2118257471 in words is "two billion, one hundred eighteen million, two hundred fifty-seven thousand, four hundred seventy-one".