28863488919 has 8 divisors (see below), whose sum is σ = 38486157552. Its totient is φ = 19241573120.

The previous prime is 28863488887. The next prime is 28863488971. The reversal of 28863488919 is 91988436882.

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

It is a cyclic number.

It is not a de Polignac number, because 28863488919 - 2⁵ = 28863488887 is a prime.

It is a super-2 number, since 2×28863488919² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28863488919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28863488119) 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, 91674 + ... + 257159.

It is an arithmetic number, because the mean of its divisors is an integer number (4810769694).

Almost surely, 2^28863488919 is an apocalyptic number.

28863488919 is a deficient number, since it is larger than the sum of its proper divisors (9622668633).

28863488919 is a wasteful number, since it uses less digits than its factorization.

28863488919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376417.

The product of its digits is 47775744, while the sum is 66.

The spelling of 28863488919 in words is "twenty-eight billion, eight hundred sixty-three million, four hundred eighty-eight thousand, nine hundred nineteen".