4042651138 has 12 divisors (see below), whose sum is σ = 6195749382. Its totient is φ = 1978316480.

The previous prime is 4042651133. The next prime is 4042651139. The reversal of 4042651138 is 8311562404.

It can be written as a sum of positive squares in only one way, i.e., 3347432449 + 695218689 = 57857^2 + 26367^2 .

It is not an unprimeable number, because it can be changed into a prime (4042651133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 453103 + ... + 461938.

Almost surely, 2^4042651138 is an apocalyptic number.

4042651138 is a deficient number, since it is larger than the sum of its proper divisors (2153098244).

4042651138 is an equidigital number, since it uses as much as digits as its factorization.

4042651138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915137 (or 915090 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 4042651138 is about 63581.8459782350. The cubic root of 4042651138 is about 1593.0231550854.

The spelling of 4042651138 in words is "four billion, forty-two million, six hundred fifty-one thousand, one hundred thirty-eight".