2126403525613 has 4 divisors (see below), whose sum is σ = 2126462518720. Its totient is φ = 2126344532508.

The previous prime is 2126403525599. The next prime is 2126403525629. The reversal of 2126403525613 is 3165253046212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2126403525613 - 2⁹ = 2126403525101 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 (2126403522613) 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, 29442453 + ... + 29514586.

It is an arithmetic number, because the mean of its divisors is an integer number (531615629680).

Almost surely, 2^{2126403525613} is an apocalyptic number.

It is an amenable number.

2126403525613 is a deficient number, since it is larger than the sum of its proper divisors (58993107).

2126403525613 is an equidigital number, since it uses as much as digits as its factorization.

2126403525613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58993106.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 2126403525613 in words is "two trillion, one hundred twenty-six billion, four hundred three million, five hundred twenty-five thousand, six hundred thirteen".