28874457406 has 8 divisors (see below), whose sum is σ = 43342041960. Its totient is φ = 14427110088.

The previous prime is 28874457401. The next prime is 28874457461. The reversal of 28874457406 is 60475447882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28874457401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055741 + ... + 5061448.

It is an arithmetic number, because the mean of its divisors is an integer number (5417755245).

Almost surely, 2^28874457406 is an apocalyptic number.

28874457406 is a deficient number, since it is larger than the sum of its proper divisors (14467584554).

28874457406 is a wasteful number, since it uses less digits than its factorization.

28874457406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118618.

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 28874457406 in words is "twenty-eight billion, eight hundred seventy-four million, four hundred fifty-seven thousand, four hundred six".