2126716258 has 8 divisors (see below), whose sum is σ = 3206268252. Its totient is φ = 1057960176.

The previous prime is 2126716237. The next prime is 2126716259. The reversal of 2126716258 is 8526176212.

It can be written as a sum of positive squares in 2 ways, for example, as 2044215369 + 82500889 = 45213^2 + 9083^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 2126716258.

It is not an unprimeable number, because it can be changed into a prime (2126716259) 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 3 ways as a sum of consecutive naturals, for example, 2698485 + ... + 2699272.

Almost surely, 2^2126716258 is an apocalyptic number.

2126716258 is a deficient number, since it is larger than the sum of its proper divisors (1079551994).

2126716258 is a wasteful number, since it uses less digits than its factorization.

2126716258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5397956.

The product of its digits is 80640, while the sum is 40.

The square root of 2126716258 is about 46116.3339609731. Note that the first 3 decimals coincide. The cubic root of 2126716258 is about 1285.9868184729.

The spelling of 2126716258 in words is "two billion, one hundred twenty-six million, seven hundred sixteen thousand, two hundred fifty-eight".