28312783323 has 8 divisors (see below), whose sum is σ = 41182230336. Its totient is φ = 17159262600.

The previous prime is 28312783313. The next prime is 28312783337. The reversal of 28312783323 is 32338721382.

It is a happy number.

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

It is not a de Polignac number, because 28312783323 - 2¹⁴ = 28312766939 is a prime.

It is a super-2 number, since 2×28312783323² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28312783313) 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, 428981533 + ... + 428981598.

It is an arithmetic number, because the mean of its divisors is an integer number (5147778792).

Almost surely, 2^28312783323 is an apocalyptic number.

28312783323 is a deficient number, since it is larger than the sum of its proper divisors (12869447013).

28312783323 is a wasteful number, since it uses less digits than its factorization.

28312783323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857963145.

The product of its digits is 290304, while the sum is 42.

The spelling of 28312783323 in words is "twenty-eight billion, three hundred twelve million, seven hundred eighty-three thousand, three hundred twenty-three".