28395031142 has 16 divisors (see below), whose sum is σ = 43022547360. Its totient is φ = 14054287872.

The previous prime is 28395031141. The next prime is 28395031151. The reversal of 28395031142 is 24113059382.

It is a junction number, because it is equal to n+sod(n) for n = 28395031096 and 28395031105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28395031141) 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 7 ways as a sum of consecutive naturals, for example, 542084 + ... + 592152.

It is an arithmetic number, because the mean of its divisors is an integer number (2688909210).

Almost surely, 2^28395031142 is an apocalyptic number.

28395031142 is a deficient number, since it is larger than the sum of its proper divisors (14627516218).

28395031142 is a wasteful number, since it uses less digits than its factorization.

28395031142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52927.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 28395031142 in words is "twenty-eight billion, three hundred ninety-five million, thirty-one thousand, one hundred forty-two".