84750376121 has 2 divisors, whose sum is σ = 84750376122. Its totient is φ = 84750376120.

The previous prime is 84750376111. The next prime is 84750376133. The reversal of 84750376121 is 12167305748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61003566121 + 23746810000 = 246989^2 + 154100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84750376121 is a prime.

It is not a weakly prime, because it can be changed into another prime (84750376111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42375188060 + 42375188061.

It is an arithmetic number, because the mean of its divisors is an integer number (42375188061).

Almost surely, 2^84750376121 is an apocalyptic number.

It is an amenable number.

84750376121 is a deficient number, since it is larger than the sum of its proper divisors (1).

84750376121 is an equidigital number, since it uses as much as digits as its factorization.

84750376121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 84750376121 in words is "eighty-four billion, seven hundred fifty million, three hundred seventy-six thousand, one hundred twenty-one".