28574317431446 has 4 divisors (see below), whose sum is σ = 42861476147172. Its totient is φ = 14287158715722.

The previous prime is 28574317431437. The next prime is 28574317431523. The reversal of 28574317431446 is 64413471347582.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7143579357860 + ... + 7143579357863.

It is an arithmetic number, because the mean of its divisors is an integer number (10715369036793).

Almost surely, 2^{28574317431446} is an apocalyptic number.

28574317431446 is a deficient number, since it is larger than the sum of its proper divisors (14287158715726).

28574317431446 is a wasteful number, since it uses less digits than its factorization.

28574317431446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14287158715725.

The product of its digits is 54190080, while the sum is 59.

The spelling of 28574317431446 in words is "twenty-eight trillion, five hundred seventy-four billion, three hundred seventeen million, four hundred thirty-one thousand, four hundred forty-six".