84861326441 has 2 divisors, whose sum is σ = 84861326442. Its totient is φ = 84861326440.

The previous prime is 84861326369. The next prime is 84861326497. The reversal of 84861326441 is 14462316848.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50039900416 + 34821426025 = 223696^2 + 186605^2 .

It is a cyclic number.

It is not a de Polignac number, because 84861326441 - 2²² = 84857132137 is a prime.

It is a super-3 number, since 3×84861326441³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (84863326441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42430663220 + 42430663221.

It is an arithmetic number, because the mean of its divisors is an integer number (42430663221).

Almost surely, 2^84861326441 is an apocalyptic number.

It is an amenable number.

84861326441 is a deficient number, since it is larger than the sum of its proper divisors (1).

84861326441 is an equidigital number, since it uses as much as digits as its factorization.

84861326441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 884736, while the sum is 47.

The spelling of 84861326441 in words is "eighty-four billion, eight hundred sixty-one million, three hundred twenty-six thousand, four hundred forty-one".