84886147091 has 2 divisors, whose sum is σ = 84886147092. Its totient is φ = 84886147090.

The previous prime is 84886147061. The next prime is 84886147097. The reversal of 84886147091 is 19074168848.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84886147091 - 2³⁰ = 83812405267 is a prime.

It is not a weakly prime, because it can be changed into another prime (84886147097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42443073545 + 42443073546.

It is an arithmetic number, because the mean of its divisors is an integer number (42443073546).

Almost surely, 2^84886147091 is an apocalyptic number.

84886147091 is a deficient number, since it is larger than the sum of its proper divisors (1).

84886147091 is an equidigital number, since it uses as much as digits as its factorization.

84886147091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 84886147091 in words is "eighty-four billion, eight hundred eighty-six million, one hundred forty-seven thousand, ninety-one".