84628140479 has 2 divisors, whose sum is σ = 84628140480. Its totient is φ = 84628140478.

The previous prime is 84628140449. The next prime is 84628140539. The reversal of 84628140479 is 97404182648.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84628140479 - 2²⁰ = 84627091903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84628140479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84628140449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42314070239 + 42314070240.

It is an arithmetic number, because the mean of its divisors is an integer number (42314070240).

Almost surely, 2^84628140479 is an apocalyptic number.

84628140479 is a deficient number, since it is larger than the sum of its proper divisors (1).

84628140479 is an equidigital number, since it uses as much as digits as its factorization.

84628140479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 84628140479 in words is "eighty-four billion, six hundred twenty-eight million, one hundred forty thousand, four hundred seventy-nine".