27074779157 has 4 divisors (see below), whose sum is σ = 27650838336. Its totient is φ = 26498719980.

The previous prime is 27074779091. The next prime is 27074779181. The reversal of 27074779157 is 75197747072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27074779157 - 2¹⁸ = 27074517013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27074779357) 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, 288029519 + ... + 288029612.

It is an arithmetic number, because the mean of its divisors is an integer number (6912709584).

Almost surely, 2^27074779157 is an apocalyptic number.

It is an amenable number.

27074779157 is a deficient number, since it is larger than the sum of its proper divisors (576059179).

27074779157 is an equidigital number, since it uses as much as digits as its factorization.

27074779157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576059178.

The product of its (nonzero) digits is 6050520, while the sum is 56.

The spelling of 27074779157 in words is "twenty-seven billion, seventy-four million, seven hundred seventy-nine thousand, one hundred fifty-seven".