273440056563 has 24 divisors (see below), whose sum is σ = 405969200000. Its totient is φ = 177224246784.

The previous prime is 273440056501. The next prime is 273440056577. The reversal of 273440056563 is 365650044372.

273440056563 is a `hidden beast` number, since 2 + 7 + 34 + 4 + 0 + 0 + 56 + 563 = 666.

It is not a de Polignac number, because 273440056563 - 2¹⁷ = 273439925491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (273440056063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87198 + ... + 744636.

Almost surely, 2^273440056563 is an apocalyptic number.

273440056563 is a deficient number, since it is larger than the sum of its proper divisors (132529143437).

273440056563 is a wasteful number, since it uses less digits than its factorization.

273440056563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658731 (or 658728 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 273440056563 in words is "two hundred seventy-three billion, four hundred forty million, fifty-six thousand, five hundred sixty-three".