87000644642211 has 24 divisors (see below), whose sum is σ = 126893823813120. Its totient is φ = 57434533908336.

The previous prime is 87000644642123. The next prime is 87000644642243. The reversal of 87000644642211 is 11224644600078.

It is not a de Polignac number, because 87000644642211 - 2¹⁵ = 87000644609443 is a prime.

It is a super-2 number, since 2×87000644642211² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87000644642291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16941640 + ... + 21471386.

It is an arithmetic number, because the mean of its divisors is an integer number (5287242658880).

Almost surely, 2^{87000644642211} is an apocalyptic number.

87000644642211 is a deficient number, since it is larger than the sum of its proper divisors (39893179170909).

87000644642211 is a wasteful number, since it uses less digits than its factorization.

87000644642211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4550575 (or 4550572 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 87000644642211 in words is "eighty-seven trillion, six hundred forty-four million, six hundred forty-two thousand, two hundred eleven".