28364588380 has 48 divisors (see below), whose sum is σ = 59953420800. Its totient is φ = 11272143168.

The previous prime is 28364588353. The next prime is 28364588411. The reversal of 28364588380 is 8388546382.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 2888559 + ... + 2898361.

It is an arithmetic number, because the mean of its divisors is an integer number (1249029600).

Almost surely, 2^28364588380 is an apocalyptic number.

28364588380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28364588380 is an abundant number, since it is smaller than the sum of its proper divisors (31588832420).

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

28364588380 is a wasteful number, since it uses less digits than its factorization.

28364588380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738 (or 10736 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 55.

The spelling of 28364588380 in words is "twenty-eight billion, three hundred sixty-four million, five hundred eighty-eight thousand, three hundred eighty".