289954437860 has 48 divisors (see below), whose sum is σ = 631651426560. Its totient is φ = 111720610560.

The previous prime is 289954437833. The next prime is 289954437863. The reversal of 289954437860 is 68734459982.

It is not an unprimeable number, because it can be changed into a prime (289954437863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2173214 + ... + 2302773.

It is an arithmetic number, because the mean of its divisors is an integer number (13159404720).

Almost surely, 2^289954437860 is an apocalyptic number.

289954437860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289954437860 is an abundant number, since it is smaller than the sum of its proper divisors (341696988700).

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

289954437860 is a wasteful number, since it uses less digits than its factorization.

289954437860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4476116 (or 4476114 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 289954437860 in words is "two hundred eighty-nine billion, nine hundred fifty-four million, four hundred thirty-seven thousand, eight hundred sixty".