20282425434447 has 16 divisors (see below), whose sum is σ = 30187795997568. Its totient is φ = 12006509770080.

The previous prime is 20282425434431. The next prime is 20282425434451. The reversal of 20282425434447 is 74443452428202.

It is not a de Polignac number, because 20282425434447 - 2⁴ = 20282425434431 is a prime.

It is a super-2 number, since 2×20282425434447² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20282425434447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20282425434347) 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, 7146730588 + ... + 7146733425.

It is an arithmetic number, because the mean of its divisors is an integer number (1886737249848).

Almost surely, 2^{20282425434447} is an apocalyptic number.

20282425434447 is a deficient number, since it is larger than the sum of its proper divisors (9905370563121).

20282425434447 is a wasteful number, since it uses less digits than its factorization.

20282425434447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14293464070.

The product of its (nonzero) digits is 13762560, while the sum is 51.

The spelling of 20282425434447 in words is "twenty trillion, two hundred eighty-two billion, four hundred twenty-five million, four hundred thirty-four thousand, four hundred forty-seven".