28054936634 has 16 divisors (see below), whose sum is σ = 42797859720. Its totient is φ = 13789258560.

The previous prime is 28054936607. The next prime is 28054936639. The reversal of 28054936634 is 43663945082.

It can be written as a sum of positive squares in 4 ways, for example, as 12455676025 + 15599260609 = 111605^2 + 124897^2 .

It is not an unprimeable number, because it can be changed into a prime (28054936639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138632 + ... + 274460.

Almost surely, 2^28054936634 is an apocalyptic number.

28054936634 is a deficient number, since it is larger than the sum of its proper divisors (14742923086).

28054936634 is a wasteful number, since it uses less digits than its factorization.

28054936634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137585.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 28054936634 in words is "twenty-eight billion, fifty-four million, nine hundred thirty-six thousand, six hundred thirty-four".