28860317457 has 8 divisors (see below), whose sum is σ = 39132634080. Its totient is φ = 18914106240.

The previous prime is 28860317443. The next prime is 28860317467. The reversal of 28860317457 is 75471306882.

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

It is not a de Polignac number, because 28860317457 - 2⁴ = 28860317441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28860317467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81526144 + ... + 81526497.

It is an arithmetic number, because the mean of its divisors is an integer number (4891579260).

Almost surely, 2^28860317457 is an apocalyptic number.

It is an amenable number.

28860317457 is a deficient number, since it is larger than the sum of its proper divisors (10272316623).

28860317457 is a wasteful number, since it uses less digits than its factorization.

28860317457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163052703.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 28860317457 in words is "twenty-eight billion, eight hundred sixty million, three hundred seventeen thousand, four hundred fifty-seven".