289578875982 has 16 divisors (see below), whose sum is σ = 631808456832. Its totient is φ = 87751174520.

The previous prime is 289578875947. The next prime is 289578875983.

289578875982 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 289578875898 and 289578875907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289578875983) 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, 2193779298 + ... + 2193779429.

It is an arithmetic number, because the mean of its divisors is an integer number (39488028552).

Almost surely, 2^289578875982 is an apocalyptic number.

289578875982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

289578875982 is an abundant number, since it is smaller than the sum of its proper divisors (342229580850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

289578875982 is a wasteful number, since it uses less digits than its factorization.

289578875982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387558743.

The product of its digits is 1625702400, while the sum is 78.

The spelling of 289578875982 in words is "two hundred eighty-nine billion, five hundred seventy-eight million, eight hundred seventy-five thousand, nine hundred eighty-two".