28861718575859 has 32 divisors (see below), whose sum is σ = 31620921696000. Its totient is φ = 26182823906304.

The previous prime is 28861718575831. The next prime is 28861718575861. The reversal of 28861718575859 is 95857581716882.

It is not a de Polignac number, because 28861718575859 - 2⁸ = 28861718575603 is a prime.

It is a super-3 number, since 3×28861718575859³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28861718575259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308539007 + ... + 308632535.

It is an arithmetic number, because the mean of its divisors is an integer number (988153803000).

Almost surely, 2^{28861718575859} is an apocalyptic number.

28861718575859 is a deficient number, since it is larger than the sum of its proper divisors (2759203120141).

28861718575859 is a wasteful number, since it uses less digits than its factorization.

28861718575859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95007.

The product of its digits is 2709504000, while the sum is 80.

The spelling of 28861718575859 in words is "twenty-eight trillion, eight hundred sixty-one billion, seven hundred eighteen million, five hundred seventy-five thousand, eight hundred fifty-nine".