28393214745 has 32 divisors (see below), whose sum is σ = 51959485440. Its totient is φ = 12969639360.

The previous prime is 28393214713. The next prime is 28393214747. The reversal of 28393214745 is 54741239382.

It is not a de Polignac number, because 28393214745 - 2⁵ = 28393214713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28393214694 and 28393214703.

It is not an unprimeable number, because it can be changed into a prime (28393214747) 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 31 ways as a sum of consecutive naturals, for example, 30826 + ... + 240284.

It is an arithmetic number, because the mean of its divisors is an integer number (1623733920).

Almost surely, 2^28393214745 is an apocalyptic number.

It is an amenable number.

28393214745 is a deficient number, since it is larger than the sum of its proper divisors (23566270695).

28393214745 is a wasteful number, since it uses less digits than its factorization.

28393214745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210765.

The product of its digits is 1451520, while the sum is 48.

The spelling of 28393214745 in words is "twenty-eight billion, three hundred ninety-three million, two hundred fourteen thousand, seven hundred forty-five".