28516190257 has 8 divisors (see below), whose sum is σ = 30034120896. Its totient is φ = 27021434352.

The previous prime is 28516190251. The next prime is 28516190273. The reversal of 28516190257 is 75209161582.

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

It is a cyclic number.

It is not a de Polignac number, because 28516190257 - 2¹⁵ = 28516157489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28516190251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5791158 + ... + 5796079.

It is an arithmetic number, because the mean of its divisors is an integer number (3754265112).

Almost surely, 2^28516190257 is an apocalyptic number.

It is an amenable number.

28516190257 is a deficient number, since it is larger than the sum of its proper divisors (1517930639).

28516190257 is a wasteful number, since it uses less digits than its factorization.

28516190257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11587367.

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 28516190257 in words is "twenty-eight billion, five hundred sixteen million, one hundred ninety thousand, two hundred fifty-seven".