28518361038 has 32 divisors (see below), whose sum is σ = 63695855520. Its totient is φ = 9457862400.

The previous prime is 28518361037. The next prime is 28518361093. The reversal of 28518361038 is 83016381582.

28518361038 is a `hidden beast` number, since 28 + 5 + 1 + 8 + 3 + 610 + 3 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28518360984 and 28518361002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28518361037) 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, 1329763 + ... + 1351038.

It is an arithmetic number, because the mean of its divisors is an integer number (1990495485).

Almost surely, 2^28518361038 is an apocalyptic number.

28518361038 is an abundant number, since it is smaller than the sum of its proper divisors (35177494482).

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

28518361038 is a wasteful number, since it uses less digits than its factorization.

28518361038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681009 (or 2681003 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 28518361038 in words is "twenty-eight billion, five hundred eighteen million, three hundred sixty-one thousand, thirty-eight".