28676363904 has 256 divisors, whose sum is σ = 86717952000. Its totient is φ = 9443174400.

The previous prime is 28676363893. The next prime is 28676363939. The reversal of 28676363904 is 40936367682.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24913729 + ... + 24914879.

It is an arithmetic number, because the mean of its divisors is an integer number (338742000).

Almost surely, 2^28676363904 is an apocalyptic number.

28676363904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28676363904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43358976000).

28676363904 is an abundant number, since it is smaller than the sum of its proper divisors (58041588096).

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

28676363904 is an frugal number, since it uses more digits than its factorization.

28676363904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 28676363904 in words is "twenty-eight billion, six hundred seventy-six million, three hundred sixty-three thousand, nine hundred four".