2751738138 has 24 divisors (see below), whose sum is σ = 6167690100. Its totient is φ = 885616704.

The previous prime is 2751738091. The next prime is 2751738161. The reversal of 2751738138 is 8318371572.

2751738138 is a `hidden beast` number, since 27 + 517 + 3 + 81 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2376270009 + 375468129 = 48747^2 + 19377^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2751738093 and 2751738102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2635243 + ... + 2636286.

Almost surely, 2^2751738138 is an apocalyptic number.

2751738138 is an abundant number, since it is smaller than the sum of its proper divisors (3415951962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2751738138 is a wasteful number, since it uses less digits than its factorization.

2751738138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271566 (or 5271563 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 2751738138 is about 52457.0122862521. The cubic root of 2751738138 is about 1401.3147747398.

The spelling of 2751738138 in words is "two billion, seven hundred fifty-one million, seven hundred thirty-eight thousand, one hundred thirty-eight".