28773034600 has 48 divisors (see below), whose sum is σ = 66911928300. Its totient is φ = 11506698240.

The previous prime is 28773034583. The next prime is 28773034601. The reversal of 28773034600 is 643037782.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 25034201284 + 3738833316 = 158222^2 + 61146^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (28773034601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098456 + ... + 1124344.

Almost surely, 2^28773034600 is an apocalyptic number.

28773034600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28773034600 is an abundant number, since it is smaller than the sum of its proper divisors (38138893700).

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

28773034600 is a wasteful number, since it uses less digits than its factorization.

28773034600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31462 (or 31453 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 28773034600 in words is "twenty-eight billion, seven hundred seventy-three million, thirty-four thousand, six hundred".