877549945778 has 16 divisors (see below), whose sum is σ = 1436056893504. Its totient is φ = 398867985360.

The previous prime is 877549945771. The next prime is 877549945781.

877549945778 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (877549945771) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 422750 + ... + 1390617.

It is an arithmetic number, because the mean of its divisors is an integer number (89753555844).

Almost surely, 2^877549945778 is an apocalyptic number.

877549945778 is a deficient number, since it is larger than the sum of its proper divisors (558506947726).

877549945778 is a wasteful number, since it uses less digits than its factorization.

877549945778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835377.

The product of its digits is 4978713600, while the sum is 80.

The spelling of 877549945778 in words is "eight hundred seventy-seven billion, five hundred forty-nine million, nine hundred forty-five thousand, seven hundred seventy-eight".