84425112281 has 2 divisors, whose sum is σ = 84425112282. Its totient is φ = 84425112280.

The previous prime is 84425112203. The next prime is 84425112307. The reversal of 84425112281 is 18221152448.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80766798025 + 3658314256 = 284195^2 + 60484^2 .

It is a cyclic number.

It is not a de Polignac number, because 84425112281 - 2¹⁴ = 84425095897 is a prime.

It is a super-3 number, since 3×84425112281³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (84425712281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42212556140 + 42212556141.

It is an arithmetic number, because the mean of its divisors is an integer number (42212556141).

Almost surely, 2^84425112281 is an apocalyptic number.

It is an amenable number.

84425112281 is a deficient number, since it is larger than the sum of its proper divisors (1).

84425112281 is an equidigital number, since it uses as much as digits as its factorization.

84425112281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40960, while the sum is 38.

The spelling of 84425112281 in words is "eighty-four billion, four hundred twenty-five million, one hundred twelve thousand, two hundred eighty-one".