289071064432920 has 512 divisors, whose sum is σ = 1175741504133120. Its totient is φ = 55005448273920.

The previous prime is 289071064432859. The next prime is 289071064432921. The reversal of 289071064432920 is 29234460170982.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289071064432921) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19056679 + ... + 30680598.

It is an arithmetic number, because the mean of its divisors is an integer number (2296370125260).

Almost surely, 2^{289071064432920} is an apocalyptic number.

289071064432920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289071064432920 is an abundant number, since it is smaller than the sum of its proper divisors (886670439700200).

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

289071064432920 is a wasteful number, since it uses less digits than its factorization.

289071064432920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49737363 (or 49737359 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 289071064432920 in words is "two hundred eighty-nine trillion, seventy-one billion, sixty-four million, four hundred thirty-two thousand, nine hundred twenty".