28322668153 has 8 divisors (see below), whose sum is σ = 30771259848. Its totient is φ = 25912637184.

The previous prime is 28322668139. The next prime is 28322668163. The reversal of 28322668153 is 35186622382.

It can be written as a sum of positive squares in 4 ways, for example, as 491420224 + 27831247929 = 22168^2 + 166827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28322668153 - 2²¹ = 28320571001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28322668163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9638650 + ... + 9641587.

It is an arithmetic number, because the mean of its divisors is an integer number (3846407481).

Almost surely, 2^28322668153 is an apocalyptic number.

It is an amenable number.

28322668153 is a deficient number, since it is larger than the sum of its proper divisors (2448591695).

28322668153 is a wasteful number, since it uses less digits than its factorization.

28322668153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19280363.

The product of its digits is 829440, while the sum is 46.

The spelling of 28322668153 in words is "twenty-eight billion, three hundred twenty-two million, six hundred sixty-eight thousand, one hundred fifty-three".