2643016538 has 32 divisors (see below), whose sum is σ = 4249953792. Its totient is φ = 1230508800.

The previous prime is 2643016531. The next prime is 2643016567. The reversal of 2643016538 is 8356103462.

It is not an unprimeable number, because it can be changed into a prime (2643016531) 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 15 ways as a sum of consecutive naturals, for example, 178445 + ... + 192687.

It is an arithmetic number, because the mean of its divisors is an integer number (132811056).

Almost surely, 2^2643016538 is an apocalyptic number.

2643016538 is a deficient number, since it is larger than the sum of its proper divisors (1606937254).

2643016538 is a wasteful number, since it uses less digits than its factorization.

2643016538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14390.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2643016538 is about 51410.2765796878. The cubic root of 2643016538 is about 1382.6108485208.

The spelling of 2643016538 in words is "two billion, six hundred forty-three million, sixteen thousand, five hundred thirty-eight".