28747069738 has 16 divisors (see below), whose sum is σ = 43280135136. Its totient is φ = 14320386640.

The previous prime is 28747069697. The next prime is 28747069739. The reversal of 28747069738 is 83796074782.

It is not an unprimeable number, because it can be changed into a prime (28747069739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3982953 + ... + 3990163.

It is an arithmetic number, because the mean of its divisors is an integer number (2705008446).

Almost surely, 2^28747069738 is an apocalyptic number.

28747069738 is a deficient number, since it is larger than the sum of its proper divisors (14533065398).

28747069738 is a wasteful number, since it uses less digits than its factorization.

28747069738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14309.

The product of its (nonzero) digits is 28449792, while the sum is 61.

The spelling of 28747069738 in words is "twenty-eight billion, seven hundred forty-seven million, sixty-nine thousand, seven hundred thirty-eight".