27042541923 has 4 divisors (see below), whose sum is σ = 36056722568. Its totient is φ = 18028361280.

The previous prime is 27042541919. The next prime is 27042541949. The reversal of 27042541923 is 32914524072.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27042541923 - 2² = 27042541919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27042541423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4507090318 + ... + 4507090323.

It is an arithmetic number, because the mean of its divisors is an integer number (9014180642).

Almost surely, 2^27042541923 is an apocalyptic number.

27042541923 is a deficient number, since it is larger than the sum of its proper divisors (9014180645).

27042541923 is an equidigital number, since it uses as much as digits as its factorization.

27042541923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9014180644.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 27042541923 in words is "twenty-seven billion, forty-two million, five hundred forty-one thousand, nine hundred twenty-three".