84630041004557 has 2 divisors, whose sum is σ = 84630041004558. Its totient is φ = 84630041004556.

The previous prime is 84630041004521. The next prime is 84630041004583. The reversal of 84630041004557 is 75540014003648.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58495666876516 + 26134374128041 = 7648246^2 + 5112179^2 .

It is a cyclic number.

It is not a de Polignac number, because 84630041004557 - 2¹⁴ = 84630040988173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84630041007557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42315020502278 + 42315020502279.

It is an arithmetic number, because the mean of its divisors is an integer number (42315020502279).

Almost surely, 2^{84630041004557} is an apocalyptic number.

It is an amenable number.

84630041004557 is a deficient number, since it is larger than the sum of its proper divisors (1).

84630041004557 is an equidigital number, since it uses as much as digits as its factorization.

84630041004557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 84630041004557 in words is "eighty-four trillion, six hundred thirty billion, forty-one million, four thousand, five hundred fifty-seven".