28067740264 has 8 divisors (see below), whose sum is σ = 52627013010. Its totient is φ = 14033870128.

The previous prime is 28067740241. The next prime is 28067740273. The reversal of 28067740264 is 46204776082.

It can be written as a sum of positive squares in only one way, i.e., 16695224100 + 11372516164 = 129210^2 + 106642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1754233759 + ... + 1754233774.

Almost surely, 2^28067740264 is an apocalyptic number.

It is an amenable number.

28067740264 is a deficient number, since it is larger than the sum of its proper divisors (24559272746).

28067740264 is a wasteful number, since it uses less digits than its factorization.

28067740264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508467539 (or 3508467535 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 28067740264 in words is "twenty-eight billion, sixty-seven million, seven hundred forty thousand, two hundred sixty-four".