267898780055 has 4 divisors (see below), whose sum is σ = 321478536072. Its totient is φ = 214319024040.

The previous prime is 267898780013. The next prime is 267898780063. The reversal of 267898780055 is 550087898762.

267898780055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-267898780055 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 267898779973 and 267898780000.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 26789878001 + ... + 26789878010.

It is an arithmetic number, because the mean of its divisors is an integer number (80369634018).

Almost surely, 2^267898780055 is an apocalyptic number.

267898780055 is a deficient number, since it is larger than the sum of its proper divisors (53579756017).

267898780055 is an equidigital number, since it uses as much as digits as its factorization.

267898780055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53579756016.

The product of its (nonzero) digits is 67737600, while the sum is 65.

The spelling of 267898780055 in words is "two hundred sixty-seven billion, eight hundred ninety-eight million, seven hundred eighty thousand, fifty-five".