64028513077 has 2 divisors, whose sum is σ = 64028513078. Its totient is φ = 64028513076.

The previous prime is 64028513063. The next prime is 64028513089. The reversal of 64028513077 is 77031582046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53326817476 + 10701695601 = 230926^2 + 103449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64028513077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64028513477) 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, 32014256538 + 32014256539.

It is an arithmetic number, because the mean of its divisors is an integer number (32014256539).

Almost surely, 2^64028513077 is an apocalyptic number.

It is an amenable number.

64028513077 is a deficient number, since it is larger than the sum of its proper divisors (1).

64028513077 is an equidigital number, since it uses as much as digits as its factorization.

64028513077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 64028513077 in words is "sixty-four billion, twenty-eight million, five hundred thirteen thousand, seventy-seven".