27286834157 has 4 divisors (see below), whose sum is σ = 29767455456. Its totient is φ = 24806212860.

The previous prime is 27286834109. The next prime is 27286834163. The reversal of 27286834157 is 75143868272.

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 not a de Polignac number, because 27286834157 - 2¹² = 27286830061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27286834099 and 27286834108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27286833157) 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, 1240310633 + ... + 1240310654.

It is an arithmetic number, because the mean of its divisors is an integer number (7441863864).

Almost surely, 2^27286834157 is an apocalyptic number.

It is an amenable number.

27286834157 is a deficient number, since it is larger than the sum of its proper divisors (2480621299).

27286834157 is a wasteful number, since it uses less digits than its factorization.

27286834157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480621298.

The product of its digits is 4515840, while the sum is 53.

The spelling of 27286834157 in words is "twenty-seven billion, two hundred eighty-six million, eight hundred thirty-four thousand, one hundred fifty-seven".