277778050055 has 16 divisors (see below), whose sum is σ = 363674160288. Its totient is φ = 201999600000.

The previous prime is 277778050027. The next prime is 277778050073. The reversal of 277778050055 is 550050877772.

It is not a de Polignac number, because 277778050055 - 2¹² = 277778045959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 277778049979 and 277778050006.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 289505 + ... + 799605.

It is an arithmetic number, because the mean of its divisors is an integer number (22729635018).

Almost surely, 2^277778050055 is an apocalyptic number.

277778050055 is a deficient number, since it is larger than the sum of its proper divisors (85896110233).

277778050055 is a wasteful number, since it uses less digits than its factorization.

277778050055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520018.

The product of its (nonzero) digits is 4802000, while the sum is 53.

The spelling of 277778050055 in words is "two hundred seventy-seven billion, seven hundred seventy-eight million, fifty thousand, fifty-five".