83508440345543 has 2 divisors, whose sum is σ = 83508440345544. Its totient is φ = 83508440345542.

The previous prime is 83508440345537. The next prime is 83508440345567. The reversal of 83508440345543 is 34554304480538.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83508440345543 - 2¹⁴ = 83508440329159 is a prime.

It is a super-2 number, since 2×83508440345543² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83508440344543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41754220172771 + 41754220172772.

It is an arithmetic number, because the mean of its divisors is an integer number (41754220172772).

Almost surely, 2^{83508440345543} is an apocalyptic number.

83508440345543 is a deficient number, since it is larger than the sum of its proper divisors (1).

83508440345543 is an equidigital number, since it uses as much as digits as its factorization.

83508440345543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296000, while the sum is 56.

The spelling of 83508440345543 in words is "eighty-three trillion, five hundred eight billion, four hundred forty million, three hundred forty-five thousand, five hundred forty-three".