28076723264 has 14 divisors (see below), whose sum is σ = 55714747854. Its totient is φ = 14038361600.

The previous prime is 28076723251. The next prime is 28076723267. The reversal of 28076723264 is 46232767082.

It can be written as a sum of positive squares in only one way, i.e., 28076353600 + 369664 = 167560^2 + 608^2 .

It is not an unprimeable number, because it can be changed into a prime (28076723267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219349337 + ... + 219349464.

Almost surely, 2^28076723264 is an apocalyptic number.

It is an amenable number.

28076723264 is a deficient number, since it is larger than the sum of its proper divisors (27638024590).

28076723264 is an equidigital number, since it uses as much as digits as its factorization.

28076723264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438698813 (or 438698803 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 28076723264 in words is "twenty-eight billion, seventy-six million, seven hundred twenty-three thousand, two hundred sixty-four".