28130322783 has 4 divisors (see below), whose sum is σ = 37507097048. Its totient is φ = 18753548520.

The previous prime is 28130322743. The next prime is 28130322793. The reversal of 28130322783 is 38722303182.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28130322783 - 2²⁸ = 27861887327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28130322743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4688387128 + ... + 4688387133.

It is an arithmetic number, because the mean of its divisors is an integer number (9376774262).

Almost surely, 2^28130322783 is an apocalyptic number.

28130322783 is a deficient number, since it is larger than the sum of its proper divisors (9376774265).

28130322783 is an equidigital number, since it uses as much as digits as its factorization.

28130322783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9376774264.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 28130322783 in words is "twenty-eight billion, one hundred thirty million, three hundred twenty-two thousand, seven hundred eighty-three".