84400480427 has 2 divisors, whose sum is σ = 84400480428. Its totient is φ = 84400480426.

The previous prime is 84400480391. The next prime is 84400480471. The reversal of 84400480427 is 72408400448.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84400480427 is a prime.

It is not a weakly prime, because it can be changed into another prime (84400480027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42200240213 + 42200240214.

It is an arithmetic number, because the mean of its divisors is an integer number (42200240214).

Almost surely, 2^84400480427 is an apocalyptic number.

84400480427 is a deficient number, since it is larger than the sum of its proper divisors (1).

84400480427 is an equidigital number, since it uses as much as digits as its factorization.

84400480427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229376, while the sum is 41.

The spelling of 84400480427 in words is "eighty-four billion, four hundred million, four hundred eighty thousand, four hundred twenty-seven".