2776660138 has 32 divisors (see below), whose sum is σ = 4880736000. Its totient is φ = 1159866240.

The previous prime is 2776660127. The next prime is 2776660151. The reversal of 2776660138 is 8310666772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 924363 + ... + 927361.

It is an arithmetic number, because the mean of its divisors is an integer number (152523000).

Almost surely, 2^2776660138 is an apocalyptic number.

2776660138 is a deficient number, since it is larger than the sum of its proper divisors (2104075862).

2776660138 is a wasteful number, since it uses less digits than its factorization.

2776660138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 2776660138 is about 52694.0237408380. The cubic root of 2776660138 is about 1405.5325527661.

The spelling of 2776660138 in words is "two billion, seven hundred seventy-six million, six hundred sixty thousand, one hundred thirty-eight".