2126508799 has 4 divisors (see below), whose sum is σ = 2175962536. Its totient is φ = 2077055064.

The previous prime is 2126508763. The next prime is 2126508809. The reversal of 2126508799 is 9978056212.

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-2126508799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126508199) 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, 24726804 + ... + 24726889.

It is an arithmetic number, because the mean of its divisors is an integer number (543990634).

Almost surely, 2^2126508799 is an apocalyptic number.

2126508799 is a deficient number, since it is larger than the sum of its proper divisors (49453737).

2126508799 is an equidigital number, since it uses as much as digits as its factorization.

2126508799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49453736.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 2126508799 is about 46114.0846054652. The cubic root of 2126508799 is about 1285.9450015460.

The spelling of 2126508799 in words is "two billion, one hundred twenty-six million, five hundred eight thousand, seven hundred ninety-nine".