87044471090 has 16 divisors (see below), whose sum is σ = 156698105688. Its totient is φ = 34813775616.

The previous prime is 87044471077. The next prime is 87044471099. The reversal of 87044471090 is 9017444078.

It is a Cunningham number, because it is equal to 295033²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 75928353601 + 11116117489 = 275551^2 + 105433^2 .

It is not an unprimeable number, because it can be changed into a prime (87044471099) 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 in 7 ways as a sum of consecutive naturals, for example, 409697 + ... + 584756.

Almost surely, 2^87044471090 is an apocalyptic number.

87044471090 is a deficient number, since it is larger than the sum of its proper divisors (69653634598).

87044471090 is a wasteful number, since it uses less digits than its factorization.

87044471090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003213.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 87044471090 in words is "eighty-seven billion, forty-four million, four hundred seventy-one thousand, ninety".