28973174076479 has 4 divisors (see below), whose sum is σ = 28973293268784. Its totient is φ = 28973054884176.

The previous prime is 28973174076449. The next prime is 28973174076503. The reversal of 28973174076479 is 97467047137982.

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

It is a cyclic number.

It is not a de Polignac number, because 28973174076479 - 2⁴⁰ = 27873662448703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28973174076449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59230787 + ... + 59717940.

It is an arithmetic number, because the mean of its divisors is an integer number (7243323317196).

Almost surely, 2^{28973174076479} is an apocalyptic number.

28973174076479 is a deficient number, since it is larger than the sum of its proper divisors (119192305).

28973174076479 is a wasteful number, since it uses less digits than its factorization.

28973174076479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119192304.

The product of its (nonzero) digits is 896168448, while the sum is 74.

It can be divided in two parts, 2897317 and 4076479, that added together give a palindrome (6973796).

The spelling of 28973174076479 in words is "twenty-eight trillion, nine hundred seventy-three billion, one hundred seventy-four million, seventy-six thousand, four hundred seventy-nine".