289439704628 has 12 divisors (see below), whose sum is σ = 509552535072. Its totient is φ = 143853266040.

The previous prime is 289439704607. The next prime is 289439704663. The reversal of 289439704628 is 826407934982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216645818 + ... + 216647153.

It is an arithmetic number, because the mean of its divisors is an integer number (42462711256).

Almost surely, 2^289439704628 is an apocalyptic number.

It is an amenable number.

289439704628 is a deficient number, since it is larger than the sum of its proper divisors (220112830444).

289439704628 is a wasteful number, since it uses less digits than its factorization.

289439704628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433293142 (or 433293140 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 62.

The spelling of 289439704628 in words is "two hundred eighty-nine billion, four hundred thirty-nine million, seven hundred four thousand, six hundred twenty-eight".