28328280006 has 32 divisors (see below), whose sum is σ = 61050255840. Its totient is φ = 8711322624.

The previous prime is 28328279999. The next prime is 28328280007. The reversal of 28328280006 is 60008282382.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28328280007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30390 + ... + 239958.

It is an arithmetic number, because the mean of its divisors is an integer number (1907820495).

Almost surely, 2^28328280006 is an apocalyptic number.

28328280006 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28328280006 is an abundant number, since it is smaller than the sum of its proper divisors (32721975834).

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

28328280006 is a wasteful number, since it uses less digits than its factorization.

28328280006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211320.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 28328280006 in words is "twenty-eight billion, three hundred twenty-eight million, two hundred eighty thousand, six".