70561081392773 has 2 divisors, whose sum is σ = 70561081392774. Its totient is φ = 70561081392772.

The previous prime is 70561081392743. The next prime is 70561081392797. The reversal of 70561081392773 is 37729318016507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70440132551044 + 120948841729 = 8392862^2 + 347777^2 .

It is a cyclic number.

It is not a de Polignac number, because 70561081392773 - 2²⁴ = 70561064615557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70561081392743) 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, 35280540696386 + 35280540696387.

It is an arithmetic number, because the mean of its divisors is an integer number (35280540696387).

Almost surely, 2^{70561081392773} is an apocalyptic number.

It is an amenable number.

70561081392773 is a deficient number, since it is larger than the sum of its proper divisors (1).

70561081392773 is an equidigital number, since it uses as much as digits as its factorization.

70561081392773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13335840, while the sum is 59.

The spelling of 70561081392773 in words is "seventy trillion, five hundred sixty-one billion, eighty-one million, three hundred ninety-two thousand, seven hundred seventy-three".