28694000067 has 8 divisors (see below), whose sum is σ = 38259681024. Its totient is φ = 19128826248.

The previous prime is 28694000057. The next prime is 28694000099. The reversal of 28694000067 is 76000049682.

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

It is not a de Polignac number, because 28694000067 - 2⁶ = 28694000003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28693999992 and 28694000028.

It is not an unprimeable number, because it can be changed into a prime (28694000017) 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, 34578 + ... + 242040.

It is an arithmetic number, because the mean of its divisors is an integer number (4782460128).

Almost surely, 2^28694000067 is an apocalyptic number.

28694000067 is the 138309-th pentagonal number.

28694000067 is a deficient number, since it is larger than the sum of its proper divisors (9565680957).

28694000067 is a wasteful number, since it uses less digits than its factorization.

28694000067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253569.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 28694000067 in words is "twenty-eight billion, six hundred ninety-four million, sixty-seven", and thus it is an aban number.