28667608476 has 24 divisors (see below), whose sum is σ = 72036555024. Its totient is φ = 8820802560.

The previous prime is 28667608447. The next prime is 28667608477. The reversal of 28667608476 is 67480676682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28667608477) 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, 91883205 + ... + 91883516.

It is an arithmetic number, because the mean of its divisors is an integer number (3001523126).

Almost surely, 2^28667608476 is an apocalyptic number.

28667608476 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28667608476 is an abundant number, since it is smaller than the sum of its proper divisors (43368946548).

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

28667608476 is a wasteful number, since it uses less digits than its factorization.

28667608476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183766741 (or 183766739 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 28667608476 in words is "twenty-eight billion, six hundred sixty-seven million, six hundred eight thousand, four hundred seventy-six".