276285290880 has 128 divisors (see below), whose sum is σ = 880840706400. Its totient is φ = 73660907520.

The previous prime is 276285290807. The next prime is 276285290887. The reversal of 276285290880 is 88092582672.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×276285290880² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 276285290880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276285290887) 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, 11740566 + ... + 11764074.

Almost surely, 2^276285290880 is an apocalyptic number.

276285290880 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 276285290880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440420353200).

276285290880 is an abundant number, since it is smaller than the sum of its proper divisors (604555415520).

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

276285290880 is a wasteful number, since it uses less digits than its factorization.

276285290880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29652 (or 29640 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 276285290880 in words is "two hundred seventy-six billion, two hundred eighty-five million, two hundred ninety thousand, eight hundred eighty".