994077877828 has 24 divisors (see below), whose sum is σ = 2105106095232. Its totient is φ = 400972589184.

The previous prime is 994077877823. The next prime is 994077877861. The reversal of 994077877828 is 828778770499.

994077877828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (994077877823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044198976 + ... + 1044199927.

It is an arithmetic number, because the mean of its divisors is an integer number (87712753968).

Almost surely, 2^994077877828 is an apocalyptic number.

It is an amenable number.

994077877828 is an abundant number, since it is smaller than the sum of its proper divisors (1111028217404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

994077877828 is a wasteful number, since it uses less digits than its factorization.

994077877828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088398931 (or 2088398929 counting only the distinct ones).

The product of its (nonzero) digits is 796594176, while the sum is 76.

The spelling of 994077877828 in words is "nine hundred ninety-four billion, seventy-seven million, eight hundred seventy-seven thousand, eight hundred twenty-eight".