877099794722 has 6 divisors (see below), whose sum is σ = 1315651678779. Its totient is φ = 438549235130.

The previous prime is 877099794677. The next prime is 877099794731. The reversal of 877099794722 is 227497990778.

It can be written as a sum of positive squares in only one way, i.e., 438549897361 + 438549897361 = 662231^2 + 662231^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=662231.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 993347 + ... + 1655577.

Almost surely, 2^877099794722 is an apocalyptic number.

877099794722 is a deficient number, since it is larger than the sum of its proper divisors (438551884057).

877099794722 is an frugal number, since it uses more digits than its factorization.

877099794722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324464 (or 662233 counting only the distinct ones).

The product of its (nonzero) digits is 224042112, while the sum is 71.

The spelling of 877099794722 in words is "eight hundred seventy-seven billion, ninety-nine million, seven hundred ninety-four thousand, seven hundred twenty-two".