275995721280 has 224 divisors, whose sum is σ = 898632817920. Its totient is φ = 71745372160.

The previous prime is 275995721257. The next prime is 275995721329. The reversal of 275995721280 is 82127599572.

It is a self number, because there is not a number n which added to its sum of digits gives 275995721280.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6043492 + ... + 6088988.

Almost surely, 2^275995721280 is an apocalyptic number.

275995721280 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 275995721280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449316408960).

275995721280 is an abundant number, since it is smaller than the sum of its proper divisors (622637096640).

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

275995721280 is a wasteful number, since it uses less digits than its factorization.

275995721280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45677 (or 45667 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 57.

The spelling of 275995721280 in words is "two hundred seventy-five billion, nine hundred ninety-five million, seven hundred twenty-one thousand, two hundred eighty".