84656730541 has 2 divisors, whose sum is σ = 84656730542. Its totient is φ = 84656730540.

The previous prime is 84656730539. The next prime is 84656730583. The reversal of 84656730541 is 14503765648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84649574916 + 7155625 = 290946^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 84656730541 - 2¹ = 84656730539 is a prime.

Together with 84656730539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84656733541) 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, 42328365270 + 42328365271.

It is an arithmetic number, because the mean of its divisors is an integer number (42328365271).

Almost surely, 2^84656730541 is an apocalyptic number.

It is an amenable number.

84656730541 is a deficient number, since it is larger than the sum of its proper divisors (1).

84656730541 is an equidigital number, since it uses as much as digits as its factorization.

84656730541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 84656730541 in words is "eighty-four billion, six hundred fifty-six million, seven hundred thirty thousand, five hundred forty-one".