27777777500055 has 32 divisors (see below), whose sum is σ = 49399656468480. Its totient is φ = 13213899870080.

The previous prime is 27777777500009. The next prime is 27777777500071. The reversal of 27777777500055 is 55000577777772.

It is not a de Polignac number, because 27777777500055 - 2²³ = 27777769111447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1588200375 + ... + 1588217864.

It is an arithmetic number, because the mean of its divisors is an integer number (1543739264640).

Almost surely, 2^{27777777500055} is an apocalyptic number.

27777777500055 is a deficient number, since it is larger than the sum of its proper divisors (21621878968425).

27777777500055 is a wasteful number, since it uses less digits than its factorization.

27777777500055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176418311.

The product of its (nonzero) digits is 205885750, while the sum is 66.

The spelling of 27777777500055 in words is "twenty-seven trillion, seven hundred seventy-seven billion, seven hundred seventy-seven million, five hundred thousand, fifty-five".