27428163337 has 4 divisors (see below), whose sum is σ = 27472908100. Its totient is φ = 27383418576.

The previous prime is 27428163319. The next prime is 27428163349. The reversal of 27428163337 is 73336182472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3001286656 + 24426876681 = 54784^2 + 156291^2 .

It is a cyclic number.

It is not a de Polignac number, because 27428163337 - 2⁷ = 27428163209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27428163397) 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, 22371462 + ... + 22372687.

It is an arithmetic number, because the mean of its divisors is an integer number (6868227025).

Almost surely, 2^27428163337 is an apocalyptic number.

It is an amenable number.

27428163337 is a deficient number, since it is larger than the sum of its proper divisors (44744763).

27428163337 is an equidigital number, since it uses as much as digits as its factorization.

27428163337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44744762.

The product of its digits is 1016064, while the sum is 46.

The spelling of 27428163337 in words is "twenty-seven billion, four hundred twenty-eight million, one hundred sixty-three thousand, three hundred thirty-seven".