28711007999 has 8 divisors (see below), whose sum is σ = 29085741120. Its totient is φ = 28336557600.

The previous prime is 28711007989. The next prime is 28711008013. The reversal of 28711007999 is 99970011782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28711007999 - 2¹² = 28711003903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28711007999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28711007989) 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, 137729 + ... + 276389.

It is an arithmetic number, because the mean of its divisors is an integer number (3635717640).

Almost surely, 2^28711007999 is an apocalyptic number.

28711007999 is a deficient number, since it is larger than the sum of its proper divisors (374733121).

28711007999 is a wasteful number, since it uses less digits than its factorization.

28711007999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141361.

The product of its (nonzero) digits is 571536, while the sum is 53.

The spelling of 28711007999 in words is "twenty-eight billion, seven hundred eleven million, seven thousand, nine hundred ninety-nine".