87518150729 has 2 divisors, whose sum is σ = 87518150730. Its totient is φ = 87518150728.

The previous prime is 87518150693. The next prime is 87518150791. The reversal of 87518150729 is 92705181578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60145110025 + 27373040704 = 245245^2 + 165448^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87518150729 is a prime.

It is not a weakly prime, because it can be changed into another prime (87518150029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43759075364 + 43759075365.

It is an arithmetic number, because the mean of its divisors is an integer number (43759075365).

Almost surely, 2^87518150729 is an apocalyptic number.

It is an amenable number.

87518150729 is a deficient number, since it is larger than the sum of its proper divisors (1).

87518150729 is an equidigital number, since it uses as much as digits as its factorization.

87518150729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1411200, while the sum is 53.

The spelling of 87518150729 in words is "eighty-seven billion, five hundred eighteen million, one hundred fifty thousand, seven hundred twenty-nine".