28782306966 has 16 divisors (see below), whose sum is σ = 65788130304. Its totient is φ = 8223516264.

The previous prime is 28782306941. The next prime is 28782307007. The reversal of 28782306966 is 66960328782.

It is a happy number.

It is a super-3 number, since 3×28782306966³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 342646470 + ... + 342646553.

It is an arithmetic number, because the mean of its divisors is an integer number (4111758144).

Almost surely, 2^28782306966 is an apocalyptic number.

28782306966 is an abundant number, since it is smaller than the sum of its proper divisors (37005823338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28782306966 is a wasteful number, since it uses less digits than its factorization.

28782306966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685293035.

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 28782306966 in words is "twenty-eight billion, seven hundred eighty-two million, three hundred six thousand, nine hundred sixty-six".