2126918299 has 4 divisors (see below), whose sum is σ = 2320274520. Its totient is φ = 1933562080.

The previous prime is 2126918279. The next prime is 2126918309. The reversal of 2126918299 is 9928196212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2126918299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2126918279) 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, 96678094 + ... + 96678115.

It is an arithmetic number, because the mean of its divisors is an integer number (580068630).

Almost surely, 2^2126918299 is an apocalyptic number.

2126918299 is a deficient number, since it is larger than the sum of its proper divisors (193356221).

2126918299 is a wasteful number, since it uses less digits than its factorization.

2126918299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193356220.

The product of its digits is 279936, while the sum is 49.

The square root of 2126918299 is about 46118.5244668560. The cubic root of 2126918299 is about 1286.0275406950.

The spelling of 2126918299 in words is "two billion, one hundred twenty-six million, nine hundred eighteen thousand, two hundred ninety-nine".