2783013138 has 12 divisors (see below), whose sum is σ = 6029861838. Its totient is φ = 927671040.

The previous prime is 2783013131. The next prime is 2783013139. The reversal of 2783013138 is 8313103872.

It can be written as a sum of positive squares in only one way, i.e., 1855627929 + 927385209 = 43077^2 + 30453^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2783013131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77305903 + ... + 77305938.

Almost surely, 2^2783013138 is an apocalyptic number.

2783013138 is an abundant number, since it is smaller than the sum of its proper divisors (3246848700).

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

2783013138 is a wasteful number, since it uses less digits than its factorization.

2783013138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154611849 (or 154611846 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2783013138 is about 52754.2712773099. The cubic root of 2783013138 is about 1406.6036893582.

The spelling of 2783013138 in words is "two billion, seven hundred eighty-three million, thirteen thousand, one hundred thirty-eight".