275216219408 has 80 divisors (see below), whose sum is σ = 583246263600. Its totient is φ = 125045268480.

The previous prime is 275216219387. The next prime is 275216219423. The reversal of 275216219408 is 804912612572.

It can be written as a sum of positive squares in 8 ways, for example, as 43250689024 + 231965530384 = 207968^2 + 481628^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4206788 + ... + 4271708.

It is an arithmetic number, because the mean of its divisors is an integer number (7290578295).

Almost surely, 2^275216219408 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 275216219408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291623131800).

275216219408 is an abundant number, since it is smaller than the sum of its proper divisors (308030044192).

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

275216219408 is a wasteful number, since it uses less digits than its factorization.

275216219408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65260 (or 65254 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 275216219408 in words is "two hundred seventy-five billion, two hundred sixteen million, two hundred nineteen thousand, four hundred eight".