2126638803369 has 8 divisors (see below), whose sum is σ = 2836320999552. Its totient is φ = 1417357904720.

The previous prime is 2126638803353. The next prime is 2126638803391. The reversal of 2126638803369 is 9633088366212.

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

It is a cyclic number.

It is not a de Polignac number, because 2126638803369 - 2⁴ = 2126638803353 is a prime.

It is a super-2 number, since 2×2126638803369² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2126638803329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100312017 + ... + 100333214.

It is an arithmetic number, because the mean of its divisors is an integer number (354540124944).

Almost surely, 2^{2126638803369} is an apocalyptic number.

It is an amenable number.

2126638803369 is a deficient number, since it is larger than the sum of its proper divisors (709682196183).

2126638803369 is a wasteful number, since it uses less digits than its factorization.

2126638803369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200648767.

The product of its (nonzero) digits is 13436928, while the sum is 57.

The spelling of 2126638803369 in words is "two trillion, one hundred twenty-six billion, six hundred thirty-eight million, eight hundred three thousand, three hundred sixty-nine".