28730849364 has 84 divisors (see below), whose sum is σ = 86153197984. Its totient is φ = 8208808272.

The previous prime is 28730849333. The next prime is 28730849369. The reversal of 28730849364 is 46394803782.

28730849364 is a `hidden beast` number, since 28 + 73 + 0 + 8 + 493 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

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 28730849364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28730849369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 683362 + ... + 724185.

Almost surely, 2^28730849364 is an apocalyptic number.

It is an amenable number.

28730849364 is an abundant number, since it is smaller than the sum of its proper divisors (57422348620).

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

28730849364 is a wasteful number, since it uses less digits than its factorization.

28730849364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407576 (or 1407559 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 28730849364 in words is "twenty-eight billion, seven hundred thirty million, eight hundred forty-nine thousand, three hundred sixty-four".