877777723873 has 8 divisors (see below), whose sum is σ = 878660204040. Its totient is φ = 876895395840.

The previous prime is 877777723861. The next prime is 877777723883. The reversal of 877777723873 is 378327777778.

It can be written as a sum of positive squares in 4 ways, for example, as 2742826384 + 875034897489 = 52372^2 + 935433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 877777723873 - 2¹⁷ = 877777592801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 877777723796 and 877777723805.

It is not an unprimeable number, because it can be changed into a prime (877777723883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14108193 + ... + 14170273.

It is an arithmetic number, because the mean of its divisors is an integer number (109832525505).

Almost surely, 2^877777723873 is an apocalyptic number.

It is an amenable number.

877777723873 is a deficient number, since it is larger than the sum of its proper divisors (882480167).

877777723873 is a wasteful number, since it uses less digits than its factorization.

877777723873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76067.

The product of its digits is 948721536, while the sum is 73.

The spelling of 877777723873 in words is "eight hundred seventy-seven billion, seven hundred seventy-seven million, seven hundred twenty-three thousand, eight hundred seventy-three".