27400750479 has 12 divisors (see below), whose sum is σ = 39592421856. Its totient is φ = 18260908512.

The previous prime is 27400750463. The next prime is 27400750523. The reversal of 27400750479 is 97405700472.

27400750479 is a `hidden beast` number, since 2 + 74 + 0 + 0 + 7 + 504 + 79 = 666.

It is not a de Polignac number, because 27400750479 - 2⁴ = 27400750463 is a prime.

It is a super-2 number, since 2×27400750479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27400750579) 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 11 ways as a sum of consecutive naturals, for example, 493734 + ... + 546419.

It is an arithmetic number, because the mean of its divisors is an integer number (3299368488).

Almost surely, 2^27400750479 is an apocalyptic number.

27400750479 is a deficient number, since it is larger than the sum of its proper divisors (12191671377).

27400750479 is a wasteful number, since it uses less digits than its factorization.

27400750479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043086 (or 1043083 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 27400750479 in words is "twenty-seven billion, four hundred million, seven hundred fifty thousand, four hundred seventy-nine".