84628140449 has 2 divisors, whose sum is σ = 84628140450. Its totient is φ = 84628140448.

The previous prime is 84628140433. The next prime is 84628140479. The reversal of 84628140449 is 94404182648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76982386849 + 7645753600 = 277457^2 + 87440^2 .

It is a cyclic number.

It is not a de Polignac number, because 84628140449 - 2⁴ = 84628140433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84628140397 and 84628140406.

It is not a weakly prime, because it can be changed into another prime (84628140479) 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, 42314070224 + 42314070225.

It is an arithmetic number, because the mean of its divisors is an integer number (42314070225).

Almost surely, 2^84628140449 is an apocalyptic number.

It is an amenable number.

84628140449 is a deficient number, since it is larger than the sum of its proper divisors (1).

84628140449 is an equidigital number, since it uses as much as digits as its factorization.

84628140449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 84628140449 in words is "eighty-four billion, six hundred twenty-eight million, one hundred forty thousand, four hundred forty-nine".