275344312320 has 1728 divisors, whose sum is σ = 1268911163520. Its totient is φ = 54499737600.

The previous prime is 275344312247. The next prime is 275344312351. The reversal of 275344312320 is 23213443572.

275344312320 is a `hidden beast` number, since 2 + 75 + 3 + 443 + 123 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1142507400 + ... + 1142507640.

It is an arithmetic number, because the mean of its divisors is an integer number (734323590).

Almost surely, 2^275344312320 is an apocalyptic number.

275344312320 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 275344312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634455581760).

275344312320 is an abundant number, since it is smaller than the sum of its proper divisors (993566851200).

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

275344312320 is a wasteful number, since it uses less digits than its factorization.

275344312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

Adding to 275344312320 its reverse (23213443572), we get a palindrome (298557755892).

The spelling of 275344312320 in words is "two hundred seventy-five billion, three hundred forty-four million, three hundred twelve thousand, three hundred twenty".