27777355043 has 12 divisors (see below), whose sum is σ = 28704346488. Its totient is φ = 26877614400.

The previous prime is 27777355027. The next prime is 27777355087. The reversal of 27777355043 is 34055377772.

It is not a de Polignac number, because 27777355043 - 2⁴ = 27777355027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27777354982 and 27777355000.

It is not an unprimeable number, because it can be changed into a prime (27777355943) 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 11 ways as a sum of consecutive naturals, for example, 127643 + ... + 268043.

It is an arithmetic number, because the mean of its divisors is an integer number (2392028874).

Almost surely, 2^27777355043 is an apocalyptic number.

27777355043 is a deficient number, since it is larger than the sum of its proper divisors (926991445).

27777355043 is a wasteful number, since it uses less digits than its factorization.

27777355043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140594 (or 140551 counting only the distinct ones).

The product of its (nonzero) digits is 4321800, while the sum is 50.

The spelling of 27777355043 in words is "twenty-seven billion, seven hundred seventy-seven million, three hundred fifty-five thousand, forty-three".