275252775808 has 128 divisors (see below), whose sum is σ = 564271344000. Its totient is φ = 133705728000.

The previous prime is 275252775803. The next prime is 275252775821. The reversal of 275252775808 is 808577252572.

It is a happy number.

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

It is a super-2 number, since 2×275252775808² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275252775803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184856728 + ... + 184858216.

It is an arithmetic number, because the mean of its divisors is an integer number (4408369875).

Almost surely, 2^275252775808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275252775808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282135672000).

275252775808 is an abundant number, since it is smaller than the sum of its proper divisors (289018568192).

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

275252775808 is a wasteful number, since it uses less digits than its factorization.

275252775808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 21952000, while the sum is 58.

The spelling of 275252775808 in words is "two hundred seventy-five billion, two hundred fifty-two million, seven hundred seventy-five thousand, eight hundred eight".