289277720064 has 80 divisors (see below), whose sum is σ = 856282181040. Its totient is φ = 96425902080.

The previous prime is 289277720063. The next prime is 289277720119. The reversal of 289277720064 is 460027772982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289277720063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10449057 + ... + 10476704.

It is an arithmetic number, because the mean of its divisors is an integer number (10703527263).

Almost surely, 2^289277720064 is an apocalyptic number.

289277720064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

289277720064 is an abundant number, since it is smaller than the sum of its proper divisors (567004460976).

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

289277720064 is an equidigital number, since it uses as much as digits as its factorization.

289277720064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20925788 (or 20925766 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 289277720064 in words is "two hundred eighty-nine billion, two hundred seventy-seven million, seven hundred twenty thousand, sixty-four".