28387138353 has 16 divisors (see below), whose sum is σ = 43476174720. Its totient is φ = 16138878336.

The previous prime is 28387138337. The next prime is 28387138399. The reversal of 28387138353 is 35383178382.

It is not a de Polignac number, because 28387138353 - 2⁴ = 28387138337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28387138296 and 28387138305.

It is not an unprimeable number, because it can be changed into a prime (28387138313) 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, 3426748 + ... + 3435021.

It is an arithmetic number, because the mean of its divisors is an integer number (2717260920).

Almost surely, 2^28387138353 is an apocalyptic number.

It is an amenable number.

28387138353 is a deficient number, since it is larger than the sum of its proper divisors (15089036367).

28387138353 is a wasteful number, since it uses less digits than its factorization.

28387138353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6861976.

The product of its digits is 2903040, while the sum is 51.

The spelling of 28387138353 in words is "twenty-eight billion, three hundred eighty-seven million, one hundred thirty-eight thousand, three hundred fifty-three".