28860319457 has 16 divisors (see below), whose sum is σ = 30087974400. Its totient is φ = 27651611520.

The previous prime is 28860319429. The next prime is 28860319493. The reversal of 28860319457 is 75491306882.

It is a cyclic number.

It is not a de Polignac number, because 28860319457 - 2¹⁰ = 28860318433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28860319399 and 28860319408.

It is not an unprimeable number, because it can be changed into a prime (28860319427) 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 15 ways as a sum of consecutive naturals, for example, 5900669 + ... + 5905557.

It is an arithmetic number, because the mean of its divisors is an integer number (1880498400).

It is a 2-persistent number, because it is pandigital, and so is 2⋅28860319457 = 57720638914, but 3⋅28860319457 = 86580958371 is not.

Almost surely, 2^28860319457 is an apocalyptic number.

It is an amenable number.

28860319457 is a deficient number, since it is larger than the sum of its proper divisors (1227654943).

28860319457 is a wasteful number, since it uses less digits than its factorization.

With its successor (28860319458) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (6776).

28860319457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 28860319457 in words is "twenty-eight billion, eight hundred sixty million, three hundred nineteen thousand, four hundred fifty-seven".