27754370457 has 16 divisors (see below), whose sum is σ = 42125211648. Its totient is φ = 16089489680.

The previous prime is 27754370443. The next prime is 27754370473. The reversal of 27754370457 is 75407345772.

It is a happy number.

It is not a de Polignac number, because 27754370457 - 2¹¹ = 27754368409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27754370437) 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 15 ways as a sum of consecutive naturals, for example, 18282753 + ... + 18284270.

It is an arithmetic number, because the mean of its divisors is an integer number (2632825728).

Almost surely, 2^27754370457 is an apocalyptic number.

It is an amenable number.

27754370457 is a deficient number, since it is larger than the sum of its proper divisors (14370841191).

27754370457 is a wasteful number, since it uses less digits than its factorization.

27754370457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36567060.

The product of its (nonzero) digits is 5762400, while the sum is 51.

The spelling of 27754370457 in words is "twenty-seven billion, seven hundred fifty-four million, three hundred seventy thousand, four hundred fifty-seven".