289092272640 has 160 divisors (see below), whose sum is σ = 946734155136. Its totient is φ = 75210915840.

The previous prime is 289092272633. The next prime is 289092272647. The reversal of 289092272640 is 46272290982.

It is an interprime number because it is at equal distance from previous prime (289092272633) and next prime (289092272647).

It is a tau number, because it is divible by the number of its divisors (160).

It is not an unprimeable number, because it can be changed into a prime (289092272647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144172 + ... + 773931.

Almost surely, 2^289092272640 is an apocalyptic number.

289092272640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289092272640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473367077568).

289092272640 is an abundant number, since it is smaller than the sum of its proper divisors (657641882496).

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

289092272640 is an equidigital number, since it uses as much as digits as its factorization.

289092272640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918170 (or 918154 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 289092272640 in words is "two hundred eighty-nine billion, ninety-two million, two hundred seventy-two thousand, six hundred forty".