28364715680 has 48 divisors (see below), whose sum is σ = 76584735360. Its totient is φ = 9725044992.

The previous prime is 28364715671. The next prime is 28364715689. The reversal of 28364715680 is 8651746382.

It is an interprime number because it is at equal distance from previous prime (28364715671) and next prime (28364715689).

It is not an unprimeable number, because it can be changed into a prime (28364715689) 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 7 ways as a sum of consecutive naturals, for example, 12661700 + ... + 12663939.

It is an arithmetic number, because the mean of its divisors is an integer number (1595515320).

Almost surely, 2^28364715680 is an apocalyptic number.

28364715680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28364715680 is an abundant number, since it is smaller than the sum of its proper divisors (48220019680).

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

28364715680 is a wasteful number, since it uses less digits than its factorization.

28364715680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25325661 (or 25325653 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 28364715680 in words is "twenty-eight billion, three hundred sixty-four million, seven hundred fifteen thousand, six hundred eighty".