28834540812 has 96 divisors (see below), whose sum is σ = 93202583040. Its totient is φ = 7489488960.

The previous prime is 28834540811. The next prime is 28834540841. The reversal of 28834540812 is 21804543882.

28834540812 is a `hidden beast` number, since 28 + 8 + 3 + 4 + 540 + 81 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (28834540811) by changing a digit.

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, 1725363 + ... + 1741994.

It is an arithmetic number, because the mean of its divisors is an integer number (970860240).

Almost surely, 2^28834540812 is an apocalyptic number.

28834540812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28834540812 is an abundant number, since it is smaller than the sum of its proper divisors (64368042228).

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

28834540812 is a wasteful number, since it uses less digits than its factorization.

28834540812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467388 (or 3467380 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 28834540812 in words is "twenty-eight billion, eight hundred thirty-four million, five hundred forty thousand, eight hundred twelve".