289195951128 has 32 divisors (see below), whose sum is σ = 826274146560. Its totient is φ = 82627414560.

The previous prime is 289195951111. The next prime is 289195951139. The reversal of 289195951128 is 821159591982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860702068 + ... + 860702403.

It is an arithmetic number, because the mean of its divisors is an integer number (25821067080).

Almost surely, 2^289195951128 is an apocalyptic number.

289195951128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

289195951128 is an abundant number, since it is smaller than the sum of its proper divisors (537078195432).

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

289195951128 is a wasteful number, since it uses less digits than its factorization.

289195951128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721404487 (or 1721404483 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 60.

The spelling of 289195951128 in words is "two hundred eighty-nine billion, one hundred ninety-five million, nine hundred fifty-one thousand, one hundred twenty-eight".