2126317916 has 6 divisors (see below), whose sum is σ = 3721056360. Its totient is φ = 1063158956.

The previous prime is 2126317913. The next prime is 2126317951. The reversal of 2126317916 is 6197136212.

It is a self number, because there is not a number n which added to its sum of digits gives 2126317916.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 265789736 + ... + 265789743.

It is an arithmetic number, because the mean of its divisors is an integer number (620176060).

Almost surely, 2^2126317916 is an apocalyptic number.

It is an amenable number.

2126317916 is a deficient number, since it is larger than the sum of its proper divisors (1594738444).

2126317916 is a wasteful number, since it uses less digits than its factorization.

2126317916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531579483 (or 531579481 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 2126317916 is about 46112.0148768193. The cubic root of 2126317916 is about 1285.9065233943.

The spelling of 2126317916 in words is "two billion, one hundred twenty-six million, three hundred seventeen thousand, nine hundred sixteen".