2126406251253 has 16 divisors (see below), whose sum is σ = 3033354910400. Its totient is φ = 1320977134080.

The previous prime is 2126406251191. The next prime is 2126406251269. The reversal of 2126406251253 is 3521526046212.

It is not a de Polignac number, because 2126406251253 - 2¹⁸ = 2126405989109 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 (2126406251153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305778268 + ... + 305785221.

It is an arithmetic number, because the mean of its divisors is an integer number (189584681900).

Almost surely, 2^{2126406251253} is an apocalyptic number.

It is an amenable number.

2126406251253 is a deficient number, since it is larger than the sum of its proper divisors (906948659147).

2126406251253 is a wasteful number, since it uses less digits than its factorization.

2126406251253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611563572.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 2126406251253 in words is "two trillion, one hundred twenty-six billion, four hundred six million, two hundred fifty-one thousand, two hundred fifty-three".