87231871253 has 2 divisors, whose sum is σ = 87231871254. Its totient is φ = 87231871252.

The previous prime is 87231871249. The next prime is 87231871351. The reversal of 87231871253 is 35217813278.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79637968804 + 7593902449 = 282202^2 + 87143^2 .

It is a cyclic number.

It is not a de Polignac number, because 87231871253 - 2² = 87231871249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87231871198 and 87231871207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87231874253) 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, 43615935626 + 43615935627.

It is an arithmetic number, because the mean of its divisors is an integer number (43615935627).

Almost surely, 2^87231871253 is an apocalyptic number.

It is an amenable number.

87231871253 is a deficient number, since it is larger than the sum of its proper divisors (1).

87231871253 is an equidigital number, since it uses as much as digits as its factorization.

87231871253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The spelling of 87231871253 in words is "eighty-seven billion, two hundred thirty-one million, eight hundred seventy-one thousand, two hundred fifty-three".