20182683457 has 2 divisors, whose sum is σ = 20182683458. Its totient is φ = 20182683456.

The previous prime is 20182683431. The next prime is 20182683503. The reversal of 20182683457 is 75438628102.

It is an a-pointer prime, because the next prime (20182683503) can be obtained adding 20182683457 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20116032561 + 66650896 = 141831^2 + 8164^2 .

It is a cyclic number.

It is not a de Polignac number, because 20182683457 - 2¹⁹ = 20182159169 is a prime.

It is a super-2 number, since 2×20182683457² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20182683757) 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 as a sum of consecutive naturals, namely, 10091341728 + 10091341729.

It is an arithmetic number, because the mean of its divisors is an integer number (10091341729).

Almost surely, 2^20182683457 is an apocalyptic number.

It is an amenable number.

20182683457 is a deficient number, since it is larger than the sum of its proper divisors (1).

20182683457 is an equidigital number, since it uses as much as digits as its factorization.

20182683457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 20182683457 in words is "twenty billion, one hundred eighty-two million, six hundred eighty-three thousand, four hundred fifty-seven".