87272514805187 has 4 divisors (see below), whose sum is σ = 87272547132840. Its totient is φ = 87272482477536.

The previous prime is 87272514805181. The next prime is 87272514805243. The reversal of 87272514805187 is 78150841527278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87272514805187 - 2¹⁸ = 87272514543043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87272514805181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11704262 + ... + 17650347.

It is an arithmetic number, because the mean of its divisors is an integer number (21818136783210).

Almost surely, 2^{87272514805187} is an apocalyptic number.

87272514805187 is a deficient number, since it is larger than the sum of its proper divisors (32327653).

87272514805187 is a wasteful number, since it uses less digits than its factorization.

87272514805187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32327652.

The product of its (nonzero) digits is 70246400, while the sum is 65.

The spelling of 87272514805187 in words is "eighty-seven trillion, two hundred seventy-two billion, five hundred fourteen million, eight hundred five thousand, one hundred eighty-seven".