28026696272 has 10 divisors (see below), whose sum is σ = 54301724058. Its totient is φ = 14013348128.

The previous prime is 28026696259. The next prime is 28026696283. The reversal of 28026696272 is 27269662082.

It can be written as a sum of positive squares in only one way, i.e., 16092444736 + 11934251536 = 126856^2 + 109244^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28026696272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 875834243 + ... + 875834274.

Almost surely, 2^28026696272 is an apocalyptic number.

It is an amenable number.

28026696272 is a deficient number, since it is larger than the sum of its proper divisors (26275027786).

28026696272 is a wasteful number, since it uses less digits than its factorization.

28026696272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751668525 (or 1751668519 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 28026696272 in words is "twenty-eight billion, twenty-six million, six hundred ninety-six thousand, two hundred seventy-two".