28112769364 has 6 divisors (see below), whose sum is σ = 49197346394. Its totient is φ = 14056384680.

The previous prime is 28112769353. The next prime is 28112769367. The reversal of 28112769364 is 46396721182.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14954844100 + 13157925264 = 122290^2 + 114708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112769367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3514096167 + ... + 3514096174.

Almost surely, 2^28112769364 is an apocalyptic number.

It is an amenable number.

28112769364 is a deficient number, since it is larger than the sum of its proper divisors (21084577030).

28112769364 is a wasteful number, since it uses less digits than its factorization.

28112769364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028192345 (or 7028192343 counting only the distinct ones).

The product of its digits is 870912, while the sum is 49.

The spelling of 28112769364 in words is "twenty-eight billion, one hundred twelve million, seven hundred sixty-nine thousand, three hundred sixty-four".