28860809685419 has 4 divisors (see below), whose sum is σ = 28862824978680. Its totient is φ = 28858794392160.

The previous prime is 28860809685289. The next prime is 28860809685469. The reversal of 28860809685419 is 91458690806882.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28860809685419 - 2³⁶ = 28792090208683 is a prime.

It is a super-2 number, since 2×28860809685419² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28860809685469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007625149 + ... + 1007653790.

It is an arithmetic number, because the mean of its divisors is an integer number (7215706244670).

Almost surely, 2^{28860809685419} is an apocalyptic number.

28860809685419 is a deficient number, since it is larger than the sum of its proper divisors (2015293261).

28860809685419 is a wasteful number, since it uses less digits than its factorization.

28860809685419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015293260.

The product of its (nonzero) digits is 477757440, while the sum is 74.

The spelling of 28860809685419 in words is "twenty-eight trillion, eight hundred sixty billion, eight hundred nine million, six hundred eighty-five thousand, four hundred nineteen".