28077577850 has 48 divisors (see below), whose sum is σ = 60696561600. Its totient is φ = 9463428480.

The previous prime is 28077577849. The next prime is 28077577907. The reversal of 28077577850 is 5877577082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 659195 + ... + 700494.

It is an arithmetic number, because the mean of its divisors is an integer number (1264511700).

Almost surely, 2^28077577850 is an apocalyptic number.

28077577850 is an abundant number, since it is smaller than the sum of its proper divisors (32618983750).

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

28077577850 is a wasteful number, since it uses less digits than its factorization.

28077577850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359767 (or 1359762 counting only the distinct ones).

The product of its (nonzero) digits is 7683200, while the sum is 56.

The spelling of 28077577850 in words is "twenty-eight billion, seventy-seven million, five hundred seventy-seven thousand, eight hundred fifty".