87010557722985 has 64 divisors (see below), whose sum is σ = 154353716149248. Its totient is φ = 41583095172864.

The previous prime is 87010557722983. The next prime is 87010557723049. The reversal of 87010557722985 is 58922775501078.

It is a happy number.

It is not a de Polignac number, because 87010557722985 - 2¹ = 87010557722983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87010557722983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30464319 + ... + 33197828.

It is an arithmetic number, because the mean of its divisors is an integer number (2411776814832).

Almost surely, 2^{87010557722985} is an apocalyptic number.

It is an amenable number.

87010557722985 is a deficient number, since it is larger than the sum of its proper divisors (67343158426263).

87010557722985 is a wasteful number, since it uses less digits than its factorization.

87010557722985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63662374.

The product of its (nonzero) digits is 98784000, while the sum is 66.

The spelling of 87010557722985 in words is "eighty-seven trillion, ten billion, five hundred fifty-seven million, seven hundred twenty-two thousand, nine hundred eighty-five".