20271417543047 has 16 divisors (see below), whose sum is σ = 22828605594624. Its totient is φ = 17833335240000.

The previous prime is 20271417543001. The next prime is 20271417543053. The reversal of 20271417543047 is 74034571417202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20271417543047 - 2¹⁶ = 20271417477511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20271417542992 and 20271417543010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20271417543347) 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 15 ways as a sum of consecutive naturals, for example, 6867308 + ... + 9364974.

It is an arithmetic number, because the mean of its divisors is an integer number (1426787849664).

Almost surely, 2^{20271417543047} is an apocalyptic number.

20271417543047 is a deficient number, since it is larger than the sum of its proper divisors (2557188051577).

20271417543047 is a wasteful number, since it uses less digits than its factorization.

20271417543047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521510.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 20271417543047 in words is "twenty trillion, two hundred seventy-one billion, four hundred seventeen million, five hundred forty-three thousand, forty-seven".