289132282381 has 32 divisors (see below), whose sum is σ = 305736837120. Its totient is φ = 273150589824.

The previous prime is 289132282379. The next prime is 289132282447. The reversal of 289132282381 is 183282231982.

It is a cyclic number.

It is not a de Polignac number, because 289132282381 - 2¹ = 289132282379 is a prime.

It is a super-2 number, since 2×289132282381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289132282301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86487196 + ... + 86490538.

It is an arithmetic number, because the mean of its divisors is an integer number (9554276160).

Almost surely, 2^289132282381 is an apocalyptic number.

It is an amenable number.

289132282381 is a deficient number, since it is larger than the sum of its proper divisors (16604554739).

289132282381 is a wasteful number, since it uses less digits than its factorization.

289132282381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3985.

The product of its digits is 663552, while the sum is 49.

The spelling of 289132282381 in words is "two hundred eighty-nine billion, one hundred thirty-two million, two hundred eighty-two thousand, three hundred eighty-one".