63401054572777 has 2 divisors, whose sum is σ = 63401054572778. Its totient is φ = 63401054572776.

The previous prime is 63401054572771. The next prime is 63401054572837. The reversal of 63401054572777 is 77727545010436.

63401054572777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63348164232336 + 52890340441 = 7959156^2 + 229979^2 .

It is a cyclic number.

It is not a de Polignac number, because 63401054572777 - 2¹⁵ = 63401054540009 is a prime.

It is not a weakly prime, because it can be changed into another prime (63401054572771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31700527286388 + 31700527286389.

It is an arithmetic number, because the mean of its divisors is an integer number (31700527286389).

Almost surely, 2^{63401054572777} is an apocalyptic number.

It is an amenable number.

63401054572777 is a deficient number, since it is larger than the sum of its proper divisors (1).

63401054572777 is an equidigital number, since it uses as much as digits as its factorization.

63401054572777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34574400, while the sum is 58.

The spelling of 63401054572777 in words is "sixty-three trillion, four hundred one billion, fifty-four million, five hundred seventy-two thousand, seven hundred seventy-seven".