28318151323 has 16 divisors (see below), whose sum is σ = 37163946240. Its totient is φ = 20904717600.

The previous prime is 28318151321. The next prime is 28318151327. The reversal of 28318151323 is 32315181382.

It is a cyclic number.

It is not a de Polignac number, because 28318151323 - 2¹ = 28318151321 is a prime.

It is a super-4 number, since 4×28318151323⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28318151321) 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, 9676648 + ... + 9679573.

It is an arithmetic number, because the mean of its divisors is an integer number (2322746640).

Almost surely, 2^28318151323 is an apocalyptic number.

28318151323 is a deficient number, since it is larger than the sum of its proper divisors (8845794917).

28318151323 is a wasteful number, since it uses less digits than its factorization.

28318151323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19356258.

The product of its digits is 34560, while the sum is 37.

The spelling of 28318151323 in words is "twenty-eight billion, three hundred eighteen million, one hundred fifty-one thousand, three hundred twenty-three".