28571457146 has 4 divisors (see below), whose sum is σ = 42857185722. Its totient is φ = 14285728572.

The previous prime is 28571457127. The next prime is 28571457149. The reversal of 28571457146 is 64175417582.

28571457146 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 28422250921 + 149206225 = 168589^2 + 12215^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28571457094 and 28571457103.

It is not an unprimeable number, because it can be changed into a prime (28571457149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7142864285 + ... + 7142864288.

Almost surely, 2^28571457146 is an apocalyptic number.

28571457146 is a deficient number, since it is larger than the sum of its proper divisors (14285728576).

28571457146 is a wasteful number, since it uses less digits than its factorization.

28571457146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14285728575.

The product of its digits is 1881600, while the sum is 50.

The spelling of 28571457146 in words is "twenty-eight billion, five hundred seventy-one million, four hundred fifty-seven thousand, one hundred forty-six".