87752035561 has 2 divisors, whose sum is σ = 87752035562. Its totient is φ = 87752035560.

The previous prime is 87752035529. The next prime is 87752035639. The reversal of 87752035561 is 16553025778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86859878400 + 892157161 = 294720^2 + 29869^2 .

It is a cyclic number.

It is not a de Polignac number, because 87752035561 - 2⁵ = 87752035529 is a prime.

It is not a weakly prime, because it can be changed into another prime (87752065561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43876017780 + 43876017781.

It is an arithmetic number, because the mean of its divisors is an integer number (43876017781).

Almost surely, 2^87752035561 is an apocalyptic number.

It is an amenable number.

87752035561 is a deficient number, since it is larger than the sum of its proper divisors (1).

87752035561 is an equidigital number, since it uses as much as digits as its factorization.

87752035561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 87752035561 in words is "eighty-seven billion, seven hundred fifty-two million, thirty-five thousand, five hundred sixty-one".