2126317912 has 8 divisors (see below), whose sum is σ = 3986846100. Its totient is φ = 1063158952.

The previous prime is 2126317877. The next prime is 2126317913. The reversal of 2126317912 is 2197136212.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126317913) 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 as a sum of consecutive naturals, namely, 132894862 + ... + 132894877.

Almost surely, 2^2126317912 is an apocalyptic number.

It is an amenable number.

2126317912 is a deficient number, since it is larger than the sum of its proper divisors (1860528188).

2126317912 is a wasteful number, since it uses less digits than its factorization.

2126317912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265789745 (or 265789741 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 2126317912 is about 46112.0148334466. The cubic root of 2126317912 is about 1285.9065225879.

The spelling of 2126317912 in words is "two billion, one hundred twenty-six million, three hundred seventeen thousand, nine hundred twelve".