87286572873 has 6 divisors (see below), whose sum is σ = 126080605274. Its totient is φ = 58191048576.

The previous prime is 87286572871. The next prime is 87286572937. The reversal of 87286572873 is 37827568278.

It can be written as a sum of positive squares in only one way, i.e., 87212130489 + 74442384 = 295317^2 + 8628^2 .

It is not a de Polignac number, because 87286572873 - 2¹ = 87286572871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87286572873.

It is not an unprimeable number, because it can be changed into a prime (87286572871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4849254040 + ... + 4849254057.

Almost surely, 2^87286572873 is an apocalyptic number.

It is an amenable number.

87286572873 is a deficient number, since it is larger than the sum of its proper divisors (38794032401).

87286572873 is a wasteful number, since it uses less digits than its factorization.

87286572873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9698508103 (or 9698508100 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 63.

The spelling of 87286572873 in words is "eighty-seven billion, two hundred eighty-six million, five hundred seventy-two thousand, eight hundred seventy-three".