28812904321263 has 8 divisors (see below), whose sum is σ = 38675039358000. Its totient is φ = 19079686082688.

The previous prime is 28812904321219. The next prime is 28812904321297. The reversal of 28812904321263 is 36212340921882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28812904321263 - 2¹⁴ = 28812904304879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28812904326263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32229199018 + ... + 32229199911.

It is an arithmetic number, because the mean of its divisors is an integer number (4834379919750).

Almost surely, 2^{28812904321263} is an apocalyptic number.

28812904321263 is a deficient number, since it is larger than the sum of its proper divisors (9862135036737).

28812904321263 is a wasteful number, since it uses less digits than its factorization.

28812904321263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64458399081.

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 28812904321263 in words is "twenty-eight trillion, eight hundred twelve billion, nine hundred four million, three hundred twenty-one thousand, two hundred sixty-three".