42277779280553 has 2 divisors, whose sum is σ = 42277779280554. Its totient is φ = 42277779280552.

The previous prime is 42277779280549. The next prime is 42277779280619. The reversal of 42277779280553 is 35508297777224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39320524689664 + 2957254590889 = 6270608^2 + 1719667^2 .

It is a cyclic number.

It is not a de Polignac number, because 42277779280553 - 2² = 42277779280549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42277779280153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21138889640276 + 21138889640277.

It is an arithmetic number, because the mean of its divisors is an integer number (21138889640277).

Almost surely, 2^{42277779280553} is an apocalyptic number.

It is an amenable number.

42277779280553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42277779280553 is an equidigital number, since it uses as much as digits as its factorization.

42277779280553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414892800, while the sum is 68.

The spelling of 42277779280553 in words is "forty-two trillion, two hundred seventy-seven billion, seven hundred seventy-nine million, two hundred eighty thousand, five hundred fifty-three".