2118471706 has 8 divisors (see below), whose sum is σ = 3422146644. Its totient is φ = 977756160.

The previous prime is 2118471703. The next prime is 2118471731. The reversal of 2118471706 is 6071748112.

It can be written as a sum of positive squares in 2 ways, for example, as 1528419025 + 590052681 = 39095^2 + 24291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2118471701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40739815 + ... + 40739866.

Almost surely, 2^2118471706 is an apocalyptic number.

2118471706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2118471706 is a deficient number, since it is larger than the sum of its proper divisors (1303674938).

2118471706 is a wasteful number, since it uses less digits than its factorization.

2118471706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81479696.

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 2118471706 is about 46026.8585284723. The cubic root of 2118471706 is about 1284.3228893447.

The spelling of 2118471706 in words is "two billion, one hundred eighteen million, four hundred seventy-one thousand, seven hundred six".