87422220309 has 16 divisors (see below), whose sum is σ = 121153878720. Its totient is φ = 56005071360.

The previous prime is 87422220287. The next prime is 87422220317. The reversal of 87422220309 is 90302222478.

It is not a de Polignac number, because 87422220309 - 2⁷ = 87422220181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87422240309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362812 + ... + 2399525.

It is an arithmetic number, because the mean of its divisors is an integer number (7572117420).

Almost surely, 2^87422220309 is an apocalyptic number.

It is an amenable number.

87422220309 is a deficient number, since it is larger than the sum of its proper divisors (33731658411).

87422220309 is a wasteful number, since it uses less digits than its factorization.

87422220309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4762580.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 87422220309 in words is "eighty-seven billion, four hundred twenty-two million, two hundred twenty thousand, three hundred nine".