81283816932053 has 2 divisors, whose sum is σ = 81283816932054. Its totient is φ = 81283816932052.

The previous prime is 81283816932023. The next prime is 81283816932089. The reversal of 81283816932053 is 35023961838218.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61538031565924 + 19745785366129 = 7844618^2 + 4443623^2 .

It is a cyclic number.

It is not a de Polignac number, because 81283816932053 - 2¹⁶ = 81283816866517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 81283816931983 and 81283816932001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81283816932023) 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 as a sum of consecutive naturals, namely, 40641908466026 + 40641908466027.

It is an arithmetic number, because the mean of its divisors is an integer number (40641908466027).

Almost surely, 2^{81283816932053} is an apocalyptic number.

It is an amenable number.

81283816932053 is a deficient number, since it is larger than the sum of its proper divisors (1).

81283816932053 is an equidigital number, since it uses as much as digits as its factorization.

81283816932053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 81283816932053 in words is "eighty-one trillion, two hundred eighty-three billion, eight hundred sixteen million, nine hundred thirty-two thousand, fifty-three".