12082072738 has 4 divisors (see below), whose sum is σ = 18123109110. Its totient is φ = 6041036368.

The previous prime is 12082072733. The next prime is 12082072763. The reversal of 12082072738 is 83727028021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11963328129 + 118744609 = 109377^2 + 10897^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 12082072738.

It is not an unprimeable number, because it can be changed into a prime (12082072733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3020518183 + ... + 3020518186.

Almost surely, 2^12082072738 is an apocalyptic number.

12082072738 is a deficient number, since it is larger than the sum of its proper divisors (6041036372).

12082072738 is an equidigital number, since it uses as much as digits as its factorization.

12082072738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041036371.

The product of its (nonzero) digits is 75264, while the sum is 40.

The spelling of 12082072738 in words is "twelve billion, eighty-two million, seventy-two thousand, seven hundred thirty-eight".