20146042471 has 2 divisors, whose sum is σ = 20146042472. Its totient is φ = 20146042470.

The previous prime is 20146042459. The next prime is 20146042487. The reversal of 20146042471 is 17424064102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20146042471 - 2¹⁵ = 20146009703 is a prime.

It is a super-3 number, since 3×20146042471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20146046471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073021235 + 10073021236.

It is an arithmetic number, because the mean of its divisors is an integer number (10073021236).

Almost surely, 2^20146042471 is an apocalyptic number.

20146042471 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146042471 is an equidigital number, since it uses as much as digits as its factorization.

20146042471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 20146042471 in words is "twenty billion, one hundred forty-six million, forty-two thousand, four hundred seventy-one".