28854738894268 has 36 divisors (see below), whose sum is σ = 58742535475512. Its totient is φ = 12365783764320.

The previous prime is 28854738894263. The next prime is 28854738894313. The reversal of 28854738894268 is 86249883745882.

It is a junction number, because it is equal to n+sod(n) for n = 28854738894191 and 28854738894200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28854738894263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404630 + ... + 7725442.

It is an arithmetic number, because the mean of its divisors is an integer number (1631737096542).

Almost surely, 2^{28854738894268} is an apocalyptic number.

28854738894268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28854738894268 is an abundant number, since it is smaller than the sum of its proper divisors (29887796581244).

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

28854738894268 is a wasteful number, since it uses less digits than its factorization.

28854738894268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344122 (or 6344113 counting only the distinct ones).

The product of its digits is 11890851840, while the sum is 82.

The spelling of 28854738894268 in words is "twenty-eight trillion, eight hundred fifty-four billion, seven hundred thirty-eight million, eight hundred ninety-four thousand, two hundred sixty-eight".