28483946993 has 4 divisors (see below), whose sum is σ = 28495763568. Its totient is φ = 28472130420.

The previous prime is 28483946963. The next prime is 28483946999. The reversal of 28483946993 is 39964938482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28483946993 - 2²⁰ = 28482898417 is a prime.

It is a super-2 number, since 2×28483946993² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28483946999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5904671 + ... + 5909492.

It is an arithmetic number, because the mean of its divisors is an integer number (7123940892).

Almost surely, 2^28483946993 is an apocalyptic number.

It is an amenable number.

28483946993 is a deficient number, since it is larger than the sum of its proper divisors (11816575).

28483946993 is a wasteful number, since it uses less digits than its factorization.

28483946993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11816574.

The product of its digits is 80621568, while the sum is 65.

The spelling of 28483946993 in words is "twenty-eight billion, four hundred eighty-three million, nine hundred forty-six thousand, nine hundred ninety-three".