87137322571 has 6 divisors (see below), whose sum is σ = 94355799180. Its totient is φ = 80434451448.

The previous prime is 87137322529. The next prime is 87137322577. The reversal of 87137322571 is 17522373178.

It is not a de Polignac number, because 87137322571 - 2⁷ = 87137322443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87137322577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257802561 + ... + 257802898.

It is an arithmetic number, because the mean of its divisors is an integer number (15725966530).

Almost surely, 2^87137322571 is an apocalyptic number.

87137322571 is a deficient number, since it is larger than the sum of its proper divisors (7218476609).

87137322571 is a wasteful number, since it uses less digits than its factorization.

87137322571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515605485 (or 515605472 counting only the distinct ones).

The product of its digits is 493920, while the sum is 46.

The spelling of 87137322571 in words is "eighty-seven billion, one hundred thirty-seven million, three hundred twenty-two thousand, five hundred seventy-one".