275805530780 has 48 divisors (see below), whose sum is σ = 624023236704. Its totient is φ = 101790432000.

The previous prime is 275805530719. The next prime is 275805530789. The reversal of 275805530780 is 87035508572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275805530789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349634 + ... + 820886.

It is an arithmetic number, because the mean of its divisors is an integer number (13000484098).

Almost surely, 2^275805530780 is an apocalyptic number.

275805530780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275805530780 is an abundant number, since it is smaller than the sum of its proper divisors (348217705924).

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

275805530780 is a wasteful number, since it uses less digits than its factorization.

275805530780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473526 (or 473524 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 50.

The spelling of 275805530780 in words is "two hundred seventy-five billion, eight hundred five million, five hundred thirty thousand, seven hundred eighty".