289157994873 has 24 divisors (see below), whose sum is σ = 455664830400. Its totient is φ = 175238835360.

The previous prime is 289157994823. The next prime is 289157994883. The reversal of 289157994873 is 378499751982.

289157994873 is a `hidden beast` number, since 2 + 8 + 9 + 1 + 57 + 99 + 487 + 3 = 666.

It is not a de Polignac number, because 289157994873 - 2⁶ = 289157994809 is a prime.

It is a super-2 number, since 2×289157994873² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (289157994823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2451940 + ... + 2567162.

It is an arithmetic number, because the mean of its divisors is an integer number (18986034600).

Almost surely, 2^289157994873 is an apocalyptic number.

It is an amenable number.

289157994873 is a deficient number, since it is larger than the sum of its proper divisors (166506835527).

289157994873 is a wasteful number, since it uses less digits than its factorization.

289157994873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140589 (or 140586 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 72.

The spelling of 289157994873 in words is "two hundred eighty-nine billion, one hundred fifty-seven million, nine hundred ninety-four thousand, eight hundred seventy-three".