277145308865138 has 16 divisors (see below), whose sum is σ = 475439184408384. Its totient is φ = 118693325782320.

The previous prime is 277145308865111. The next prime is 277145308865141. The reversal of 277145308865138 is 831568803541772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6936242633 + ... + 6936282588.

It is an arithmetic number, because the mean of its divisors is an integer number (29714949025524).

Almost surely, 2^{277145308865138} is an apocalyptic number.

277145308865138 is a deficient number, since it is larger than the sum of its proper divisors (198293875543246).

277145308865138 is a wasteful number, since it uses less digits than its factorization.

277145308865138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13872526657.

The product of its (nonzero) digits is 270950400, while the sum is 68.

The spelling of 277145308865138 in words is "two hundred seventy-seven trillion, one hundred forty-five billion, three hundred eight million, eight hundred sixty-five thousand, one hundred thirty-eight".