28249709354 has 8 divisors (see below), whose sum is σ = 42375288000. Its totient is φ = 14124613356.

The previous prime is 28249709297. The next prime is 28249709381. The reversal of 28249709354 is 45390794282.

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

It is a junction number, because it is equal to n+sod(n) for n = 28249709296 and 28249709305.

It is an unprimeable number.

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, 128897 + ... + 270395.

It is an arithmetic number, because the mean of its divisors is an integer number (5296911000).

Almost surely, 2^28249709354 is an apocalyptic number.

28249709354 is a deficient number, since it is larger than the sum of its proper divisors (14125578646).

28249709354 is a wasteful number, since it uses less digits than its factorization.

28249709354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241324.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 28249709354 in words is "twenty-eight billion, two hundred forty-nine million, seven hundred nine thousand, three hundred fifty-four".