87064605773 has 2 divisors, whose sum is σ = 87064605774. Its totient is φ = 87064605772.

The previous prime is 87064605757. The next prime is 87064605829. The reversal of 87064605773 is 37750646078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65373796489 + 21690809284 = 255683^2 + 147278^2 .

It is a cyclic number.

It is not a de Polignac number, because 87064605773 - 2⁴ = 87064605757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87064605373) 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, 43532302886 + 43532302887.

It is an arithmetic number, because the mean of its divisors is an integer number (43532302887).

Almost surely, 2^87064605773 is an apocalyptic number.

It is an amenable number.

87064605773 is a deficient number, since it is larger than the sum of its proper divisors (1).

87064605773 is an equidigital number, since it uses as much as digits as its factorization.

87064605773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 87064605773 in words is "eighty-seven billion, sixty-four million, six hundred five thousand, seven hundred seventy-three".