2774548138 has 8 divisors (see below), whose sum is σ = 4406635332. Its totient is φ = 1305669696.

The previous prime is 2774548103. The next prime is 2774548159. The reversal of 2774548138 is 8318454772.

It can be written as a sum of positive squares in 2 ways, for example, as 2753415729 + 21132409 = 52473^2 + 4597^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2774548091 and 2774548100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40802145 + ... + 40802212.

Almost surely, 2^2774548138 is an apocalyptic number.

2774548138 is a deficient number, since it is larger than the sum of its proper divisors (1632087194).

2774548138 is a wasteful number, since it uses less digits than its factorization.

2774548138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81604376.

The product of its digits is 1505280, while the sum is 49.

The square root of 2774548138 is about 52673.9797053536. The cubic root of 2774548138 is about 1405.1761008229.

The spelling of 2774548138 in words is "two billion, seven hundred seventy-four million, five hundred forty-eight thousand, one hundred thirty-eight".