28367999999 has 8 divisors (see below), whose sum is σ = 29608204752. Its totient is φ = 27153904960.

The previous prime is 28367999993. The next prime is 28368000007. The reversal of 28367999999 is 99999976382.

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 28367999999 - 2⁸ = 28367999743 is a prime.

It is a Duffinian number.

28367999999 is a modest number, since divided by 999999 gives 28367 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28367999993) 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, 6525209 + ... + 6529554.

It is an arithmetic number, because the mean of its divisors is an integer number (3701025594).

Almost surely, 2^28367999999 is an apocalyptic number.

28367999999 is a deficient number, since it is larger than the sum of its proper divisors (1240204753).

28367999999 is a wasteful number, since it uses less digits than its factorization.

28367999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054857.

The product of its digits is 1071385056, while the sum is 80.

The spelling of 28367999999 in words is "twenty-eight billion, three hundred sixty-seven million, nine hundred ninety-nine thousand, nine hundred ninety-nine".