84315702481 has 2 divisors, whose sum is σ = 84315702482. Its totient is φ = 84315702480.

The previous prime is 84315702413. The next prime is 84315702503. The reversal of 84315702481 is 18420751348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73653074881 + 10662627600 = 271391^2 + 103260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84315702481 is a prime.

It is a super-2 number, since 2×84315702481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84315102481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42157851240 + 42157851241.

It is an arithmetic number, because the mean of its divisors is an integer number (42157851241).

Almost surely, 2^84315702481 is an apocalyptic number.

It is an amenable number.

84315702481 is a deficient number, since it is larger than the sum of its proper divisors (1).

84315702481 is an equidigital number, since it uses as much as digits as its factorization.

84315702481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 84315702481 in words is "eighty-four billion, three hundred fifteen million, seven hundred two thousand, four hundred eighty-one".