28351650500 has 24 divisors (see below), whose sum is σ = 61920005784. Its totient is φ = 11340660000.

The previous prime is 28351650461. The next prime is 28351650539. The reversal of 28351650500 is 505615382.

It is an interprime number because it is at equal distance from previous prime (28351650461) and next prime (28351650539).

It can be written as a sum of positive squares in 4 ways, for example, as 843437764 + 27508212736 = 29042^2 + 165856^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28351151 + ... + 28352150.

It is an arithmetic number, because the mean of its divisors is an integer number (2580000241).

Almost surely, 2^28351650500 is an apocalyptic number.

28351650500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28351650500 is an abundant number, since it is smaller than the sum of its proper divisors (33568355284).

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

28351650500 is a wasteful number, since it uses less digits than its factorization.

28351650500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56703320 (or 56703308 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 28351650500 in words is "twenty-eight billion, three hundred fifty-one million, six hundred fifty thousand, five hundred".