84417586061 has 2 divisors, whose sum is σ = 84417586062. Its totient is φ = 84417586060.

The previous prime is 84417586013. The next prime is 84417586151. The reversal of 84417586061 is 16068571448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65072948836 + 19344637225 = 255094^2 + 139085^2 .

It is a cyclic number.

It is not a de Polignac number, because 84417586061 - 2²² = 84413391757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84417586261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42208793030 + 42208793031.

It is an arithmetic number, because the mean of its divisors is an integer number (42208793031).

Almost surely, 2^84417586061 is an apocalyptic number.

It is an amenable number.

84417586061 is a deficient number, since it is larger than the sum of its proper divisors (1).

84417586061 is an equidigital number, since it uses as much as digits as its factorization.

84417586061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 84417586061 in words is "eighty-four billion, four hundred seventeen million, five hundred eighty-six thousand, sixty-one".