28620614848 has 56 divisors (see below), whose sum is σ = 64983555072. Its totient is φ = 12251599104.

The previous prime is 28620614833. The next prime is 28620614851. The reversal of 28620614848 is 84841602682.

It is a tau number, because it is divible by the number of its divisors (56).

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, 349611 + ... + 423637.

Almost surely, 2^28620614848 is an apocalyptic number.

28620614848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28620614848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32491777536).

28620614848 is an abundant number, since it is smaller than the sum of its proper divisors (36362940224).

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

28620614848 is an equidigital number, since it uses as much as digits as its factorization.

28620614848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74909 (or 74899 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 49.

The spelling of 28620614848 in words is "twenty-eight billion, six hundred twenty million, six hundred fourteen thousand, eight hundred forty-eight".