28122860267020 has 36 divisors (see below), whose sum is σ = 62736359923440. Its totient is φ = 10587429745408.

The previous prime is 28122860267017. The next prime is 28122860267023. The reversal of 28122860267020 is 2076206822182.

It is an interprime number because it is at equal distance from previous prime (28122860267017) and next prime (28122860267023).

It is not an unprimeable number, because it can be changed into a prime (28122860267023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2432767600 + ... + 2432779159.

It is an arithmetic number, because the mean of its divisors is an integer number (1742676664540).

Almost surely, 2^{28122860267020} is an apocalyptic number.

28122860267020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28122860267020 is an abundant number, since it is smaller than the sum of its proper divisors (34613499656420).

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

28122860267020 is a wasteful number, since it uses less digits than its factorization.

28122860267020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865546802 (or 4865546783 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 28122860267020 in words is "twenty-eight trillion, one hundred twenty-two billion, eight hundred sixty million, two hundred sixty-seven thousand, twenty".