275992663473 has 20 divisors (see below), whose sum is σ = 419044120308. Its totient is φ = 180978792480.

The previous prime is 275992663421. The next prime is 275992663481. The reversal of 275992663473 is 374366299572.

275992663473 is a `hidden beast` number, since 2 + 7 + 599 + 2 + 6 + 6 + 34 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 97155019809 + 178837643664 = 311697^2 + 422892^2 .

It is not a de Polignac number, because 275992663473 - 2⁹ = 275992662961 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 275992663473.

It is not an unprimeable number, because it can be changed into a prime (275992668473) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27923886 + ... + 27933767.

Almost surely, 2^275992663473 is an apocalyptic number.

It is an amenable number.

275992663473 is a deficient number, since it is larger than the sum of its proper divisors (143051456835).

275992663473 is an equidigital number, since it uses as much as digits as its factorization.

275992663473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55857726 (or 55857717 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 63.

The spelling of 275992663473 in words is "two hundred seventy-five billion, nine hundred ninety-two million, six hundred sixty-three thousand, four hundred seventy-three".