87180444267 has 16 divisors (see below), whose sum is σ = 132852591360. Its totient is φ = 49815071712.

The previous prime is 87180444229. The next prime is 87180444289. The reversal of 87180444267 is 76244408178.

It is not a de Polignac number, because 87180444267 - 2⁸ = 87180444011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87180444167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430584 + ... + 599802.

It is an arithmetic number, because the mean of its divisors is an integer number (8303286960).

Almost surely, 2^87180444267 is an apocalyptic number.

87180444267 is a deficient number, since it is larger than the sum of its proper divisors (45672147093).

87180444267 is a wasteful number, since it uses less digits than its factorization.

87180444267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193762.

The product of its (nonzero) digits is 2408448, while the sum is 51.

The spelling of 87180444267 in words is "eighty-seven billion, one hundred eighty million, four hundred forty-four thousand, two hundred sixty-seven".