87087251029 has 2 divisors, whose sum is σ = 87087251030. Its totient is φ = 87087251028.

The previous prime is 87087251011. The next prime is 87087251189. The reversal of 87087251029 is 92015278078.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81096800625 + 5990450404 = 284775^2 + 77398^2 .

It is a cyclic number.

It is not a de Polignac number, because 87087251029 - 2¹⁵ = 87087218261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87087201029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43543625514 + 43543625515.

It is an arithmetic number, because the mean of its divisors is an integer number (43543625515).

Almost surely, 2^87087251029 is an apocalyptic number.

It is an amenable number.

87087251029 is a deficient number, since it is larger than the sum of its proper divisors (1).

87087251029 is an equidigital number, since it uses as much as digits as its factorization.

87087251029 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 49.

The spelling of 87087251029 in words is "eighty-seven billion, eighty-seven million, two hundred fifty-one thousand, twenty-nine".