87796422722 has 6 divisors (see below), whose sum is σ = 131695262643. Its totient is φ = 43898001842.

The previous prime is 87796422629. The next prime is 87796422743. The reversal of 87796422722 is 22722469778.

It can be written as a sum of positive squares in only one way, i.e., 43898211361 + 43898211361 = 209519^2 + 209519^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=209519.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 314279 + ... + 523797.

Almost surely, 2^87796422722 is an apocalyptic number.

87796422722 is a deficient number, since it is larger than the sum of its proper divisors (43898839921).

87796422722 is an frugal number, since it uses more digits than its factorization.

87796422722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419040 (or 209521 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 56.

The spelling of 87796422722 in words is "eighty-seven billion, seven hundred ninety-six million, four hundred twenty-two thousand, seven hundred twenty-two".