64038855077 has 2 divisors, whose sum is σ = 64038855078. Its totient is φ = 64038855076.

The previous prime is 64038855047. The next prime is 64038855103. The reversal of 64038855077 is 77055883046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47981150116 + 16057704961 = 219046^2 + 126719^2 .

It is a cyclic number.

It is not a de Polignac number, because 64038855077 - 2¹⁰ = 64038854053 is a prime.

It is a super-3 number, since 3×64038855077³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64038855017) 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, 32019427538 + 32019427539.

It is an arithmetic number, because the mean of its divisors is an integer number (32019427539).

Almost surely, 2^64038855077 is an apocalyptic number.

It is an amenable number.

64038855077 is a deficient number, since it is larger than the sum of its proper divisors (1).

64038855077 is an equidigital number, since it uses as much as digits as its factorization.

64038855077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 53.

The spelling of 64038855077 in words is "sixty-four billion, thirty-eight million, eight hundred fifty-five thousand, seventy-seven".