2126638731041 has 4 divisors (see below), whose sum is σ = 2319969524784. Its totient is φ = 1933307937300.

The previous prime is 2126638730999. The next prime is 2126638731083. The reversal of 2126638731041 is 1401378366212.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (2126638730999) and next prime (2126638731083).

It is a cyclic number.

It is not a de Polignac number, because 2126638731041 - 2²⁶ = 2126571622177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2126638730983 and 2126638731001.

It is not an unprimeable number, because it can be changed into a prime (2126638733041) 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 3 ways as a sum of consecutive naturals, for example, 96665396855 + ... + 96665396876.

It is an arithmetic number, because the mean of its divisors is an integer number (579992381196).

Almost surely, 2^{2126638731041} is an apocalyptic number.

It is an amenable number.

2126638731041 is a deficient number, since it is larger than the sum of its proper divisors (193330793743).

2126638731041 is a wasteful number, since it uses less digits than its factorization.

2126638731041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193330793742.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 2126638731041 in words is "two trillion, one hundred twenty-six billion, six hundred thirty-eight million, seven hundred thirty-one thousand, forty-one".