289463467820 has 48 divisors (see below), whose sum is σ = 627588369408. Its totient is φ = 112031398080.

The previous prime is 289463467801. The next prime is 289463467837. The reversal of 289463467820 is 28764364982.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 289463467820.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3948419 + ... + 4021061.

It is an arithmetic number, because the mean of its divisors is an integer number (13074757696).

Almost surely, 2^289463467820 is an apocalyptic number.

289463467820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289463467820 is an abundant number, since it is smaller than the sum of its proper divisors (338124901588).

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

289463467820 is a wasteful number, since it uses less digits than its factorization.

289463467820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79110 (or 79108 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 289463467820 in words is "two hundred eighty-nine billion, four hundred sixty-three million, four hundred sixty-seven thousand, eight hundred twenty".