2538214666 has 8 divisors (see below), whose sum is σ = 4100192964. Its totient is φ = 1171483680.

The previous prime is 2538214663. The next prime is 2538214669. The reversal of 2538214666 is 6664128352.

It is an interprime number because it is at equal distance from previous prime (2538214663) and next prime (2538214669).

It can be written as a sum of positive squares in 2 ways, for example, as 2297189041 + 241025625 = 47929^2 + 15525^2 .

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 (2538214663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48811795 + ... + 48811846.

Almost surely, 2^2538214666 is an apocalyptic number.

2538214666 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2538214666 is a deficient number, since it is larger than the sum of its proper divisors (1561978298).

2538214666 is a wasteful number, since it uses less digits than its factorization.

2538214666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97623656.

The product of its digits is 414720, while the sum is 43.

The square root of 2538214666 is about 50380.6973552372. The cubic root of 2538214666 is about 1364.0892395382.

The spelling of 2538214666 in words is "two billion, five hundred thirty-eight million, two hundred fourteen thousand, six hundred sixty-six".