87108991201 has 4 divisors (see below), whose sum is σ = 87110072752. Its totient is φ = 87107909652.

The previous prime is 87108991141. The next prime is 87108991243. The reversal of 87108991201 is 10219980178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10219980178 = 2 ⋅5109990089.

It is a cyclic number.

It is not a de Polignac number, because 87108991201 - 2²³ = 87100602593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87108991001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409311 + ... + 584596.

It is an arithmetic number, because the mean of its divisors is an integer number (21777518188).

Almost surely, 2^87108991201 is an apocalyptic number.

87108991201 is the 170401-st hex number.

It is an amenable number.

87108991201 is a deficient number, since it is larger than the sum of its proper divisors (1081551).

87108991201 is an equidigital number, since it uses as much as digits as its factorization.

87108991201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081550.

The product of its (nonzero) digits is 72576, while the sum is 46.

The spelling of 87108991201 in words is "eighty-seven billion, one hundred eight million, nine hundred ninety-one thousand, two hundred one".