28286738364 has 12 divisors (see below), whose sum is σ = 66002389544. Its totient is φ = 9428912784.

The previous prime is 28286738303. The next prime is 28286738399. The reversal of 28286738364 is 46383768282.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1178614087 + ... + 1178614110.

Almost surely, 2^28286738364 is an apocalyptic number.

It is an amenable number.

28286738364 is an abundant number, since it is smaller than the sum of its proper divisors (37715651180).

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

28286738364 is a wasteful number, since it uses less digits than its factorization.

28286738364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357228204 (or 2357228202 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 57.

The spelling of 28286738364 in words is "twenty-eight billion, two hundred eighty-six million, seven hundred thirty-eight thousand, three hundred sixty-four".