20126262273543 has 6 divisors (see below), whose sum is σ = 29071267728464. Its totient is φ = 13417508182356.

The previous prime is 20126262273527. The next prime is 20126262273589. The reversal of 20126262273543 is 34537226262102.

20126262273543 is a `hidden beast` number, since 2 + 0 + 1 + 26 + 2 + 62 + 27 + 3 + 543 = 666.

It is not a de Polignac number, because 20126262273543 - 2⁴ = 20126262273527 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 (20126262273443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1118125681855 + ... + 1118125681872.

Almost surely, 2^{20126262273543} is an apocalyptic number.

20126262273543 is a deficient number, since it is larger than the sum of its proper divisors (8945005454921).

20126262273543 is a wasteful number, since it uses less digits than its factorization.

20126262273543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236251363733 (or 2236251363730 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 20126262273543 in words is "twenty trillion, one hundred twenty-six billion, two hundred sixty-two million, two hundred seventy-three thousand, five hundred forty-three".