84271377793 has 2 divisors, whose sum is σ = 84271377794. Its totient is φ = 84271377792.

The previous prime is 84271377703. The next prime is 84271377797. The reversal of 84271377793 is 39777317248.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64937309584 + 19334068209 = 254828^2 + 139047^2 .

It is a cyclic number.

It is not a de Polignac number, because 84271377793 - 2¹⁷ = 84271246721 is a prime.

It is not a weakly prime, because it can be changed into another prime (84271377797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42135688896 + 42135688897.

It is an arithmetic number, because the mean of its divisors is an integer number (42135688897).

Almost surely, 2^84271377793 is an apocalyptic number.

It is an amenable number.

84271377793 is a deficient number, since it is larger than the sum of its proper divisors (1).

84271377793 is an equidigital number, since it uses as much as digits as its factorization.

84271377793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12446784, while the sum is 58.

The spelling of 84271377793 in words is "eighty-four billion, two hundred seventy-one million, three hundred seventy-seven thousand, seven hundred ninety-three".