94721296486561 has 2 divisors, whose sum is σ = 94721296486562. Its totient is φ = 94721296486560.

The previous prime is 94721296486541. The next prime is 94721296486601. The reversal of 94721296486561 is 16568469212749.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78158683747600 + 16562612738961 = 8840740^2 + 4069719^2 .

It is a cyclic number.

It is not a de Polignac number, because 94721296486561 - 2⁷ = 94721296486433 is a prime.

It is not a weakly prime, because it can be changed into another prime (94721296486541) 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, 47360648243280 + 47360648243281.

It is an arithmetic number, because the mean of its divisors is an integer number (47360648243281).

Almost surely, 2^{94721296486561} is an apocalyptic number.

It is an amenable number.

94721296486561 is a deficient number, since it is larger than the sum of its proper divisors (1).

94721296486561 is an equidigital number, since it uses as much as digits as its factorization.

94721296486561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 313528320, while the sum is 70.

The spelling of 94721296486561 in words is "ninety-four trillion, seven hundred twenty-one billion, two hundred ninety-six million, four hundred eighty-six thousand, five hundred sixty-one".