87530274413 has 2 divisors, whose sum is σ = 87530274414. Its totient is φ = 87530274412.

The previous prime is 87530274397. The next prime is 87530274437. The reversal of 87530274413 is 31447203578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77641364164 + 9888910249 = 278642^2 + 99443^2 .

It is a cyclic number.

It is not a de Polignac number, because 87530274413 - 2⁴ = 87530274397 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87530274493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43765137206 + 43765137207.

It is an arithmetic number, because the mean of its divisors is an integer number (43765137207).

Almost surely, 2^87530274413 is an apocalyptic number.

It is an amenable number.

87530274413 is a deficient number, since it is larger than the sum of its proper divisors (1).

87530274413 is an equidigital number, since it uses as much as digits as its factorization.

87530274413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 87530274413 in words is "eighty-seven billion, five hundred thirty million, two hundred seventy-four thousand, four hundred thirteen".