28385951364 has 120 divisors (see below), whose sum is σ = 77217452928. Its totient is φ = 9085677120.

The previous prime is 28385951333. The next prime is 28385951371. The reversal of 28385951364 is 46315958382.

28385951364 is a `hidden beast` number, since 2 + 8 + 38 + 595 + 13 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 28385951364.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 789499 + ... + 824669.

Almost surely, 2^28385951364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28385951364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38608726464).

28385951364 is an abundant number, since it is smaller than the sum of its proper divisors (48831501564).

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

28385951364 is a wasteful number, since it uses less digits than its factorization.

28385951364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35287 (or 35276 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 28385951364 in words is "twenty-eight billion, three hundred eighty-five million, nine hundred fifty-one thousand, three hundred sixty-four".