28789266276 has 27 divisors (see below), whose sum is σ = 72775441011. Its totient is φ = 9596082744.

The previous prime is 28789266269. The next prime is 28789266277. The reversal of 28789266276 is 67266298782.

The square root of 28789266276 is 169674.

It is a perfect power (a square), and thus also a powerful number.

28789266276 is a `hidden beast` number, since 28 + 7 + 89 + 266 + 276 = 666.

It is not an unprimeable number, because it can be changed into a prime (28789266277) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1003905 + ... + 1032183.

Almost surely, 2^28789266276 is an apocalyptic number.

28789266276 is the 169674-th square number.

It is an amenable number.

28789266276 is an abundant number, since it is smaller than the sum of its proper divisors (43986174735).

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

28789266276 is an frugal number, since it uses more digits than its factorization.

28789266276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56568 (or 28284 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 28789266276 in words is "twenty-eight billion, seven hundred eighty-nine million, two hundred sixty-six thousand, two hundred seventy-six".