84147776147 has 2 divisors, whose sum is σ = 84147776148. Its totient is φ = 84147776146.

The previous prime is 84147776113. The next prime is 84147776189. The reversal of 84147776147 is 74167774148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84147776147 - 2⁸ = 84147775891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84147776092 and 84147776101.

It is not a weakly prime, because it can be changed into another prime (84147776197) 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, 42073888073 + 42073888074.

It is an arithmetic number, because the mean of its divisors is an integer number (42073888074).

Almost surely, 2^84147776147 is an apocalyptic number.

84147776147 is a deficient number, since it is larger than the sum of its proper divisors (1).

84147776147 is an equidigital number, since it uses as much as digits as its factorization.

84147776147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7375872, while the sum is 56.

The spelling of 84147776147 in words is "eighty-four billion, one hundred forty-seven million, seven hundred seventy-six thousand, one hundred forty-seven".