28374231107 has 4 divisors (see below), whose sum is σ = 29141102256. Its totient is φ = 27607359960.

The previous prime is 28374231091. The next prime is 28374231113. The reversal of 28374231107 is 70113247382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70113247382 = 2 ⋅35056623691.

It is a cyclic number.

It is not a de Polignac number, because 28374231107 - 2⁴ = 28374231091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28374231167) 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, 383435519 + ... + 383435592.

It is an arithmetic number, because the mean of its divisors is an integer number (7285275564).

Almost surely, 2^28374231107 is an apocalyptic number.

28374231107 is a deficient number, since it is larger than the sum of its proper divisors (766871149).

28374231107 is an equidigital number, since it uses as much as digits as its factorization.

28374231107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766871148.

The product of its (nonzero) digits is 56448, while the sum is 38.

Adding to 28374231107 its reverse (70113247382), we get a palindrome (98487478489).

The spelling of 28374231107 in words is "twenty-eight billion, three hundred seventy-four million, two hundred thirty-one thousand, one hundred seven".