28464202480394 has 4 divisors (see below), whose sum is σ = 42696303720594. Its totient is φ = 14232101240196.

The previous prime is 28464202480393. The next prime is 28464202480423. The reversal of 28464202480394 is 49308420246482.

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., 16847782206025 + 11616420274369 = 4104605^2 + 3408287^2 .

It is not an unprimeable number, because it can be changed into a prime (28464202480393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7116050620097 + ... + 7116050620100.

Almost surely, 2^{28464202480394} is an apocalyptic number.

28464202480394 is a deficient number, since it is larger than the sum of its proper divisors (14232101240200).

28464202480394 is a wasteful number, since it uses less digits than its factorization.

28464202480394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232101240199.

The product of its (nonzero) digits is 21233664, while the sum is 56.

The spelling of 28464202480394 in words is "twenty-eight trillion, four hundred sixty-four billion, two hundred two million, four hundred eighty thousand, three hundred ninety-four".