27618042923 has 4 divisors (see below), whose sum is σ = 28291653768. Its totient is φ = 26944432080.

The previous prime is 27618042919. The next prime is 27618042953. The reversal of 27618042923 is 32924081672.

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

It is a cyclic number.

It is not a de Polignac number, because 27618042923 - 2² = 27618042919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27618042913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336805361 + ... + 336805442.

It is an arithmetic number, because the mean of its divisors is an integer number (7072913442).

Almost surely, 2^27618042923 is an apocalyptic number.

27618042923 is a deficient number, since it is larger than the sum of its proper divisors (673610845).

27618042923 is an equidigital number, since it uses as much as digits as its factorization.

27618042923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673610844.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 27618042923 in words is "twenty-seven billion, six hundred eighteen million, forty-two thousand, nine hundred twenty-three".