27828536331 has 4 divisors (see below), whose sum is σ = 37104715112. Its totient is φ = 18552357552.

The previous prime is 27828536273. The next prime is 27828536347. The reversal of 27828536331 is 13363582872.

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

It is not a de Polignac number, because 27828536331 - 2¹⁴ = 27828519947 is a prime.

It is a super-2 number, since 2×27828536331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27828536381) 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, 4638089386 + ... + 4638089391.

It is an arithmetic number, because the mean of its divisors is an integer number (9276178778).

Almost surely, 2^27828536331 is an apocalyptic number.

27828536331 is a deficient number, since it is larger than the sum of its proper divisors (9276178781).

27828536331 is an equidigital number, since it uses as much as digits as its factorization.

27828536331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276178780.

The product of its digits is 1451520, while the sum is 48.

The spelling of 27828536331 in words is "twenty-seven billion, eight hundred twenty-eight million, five hundred thirty-six thousand, three hundred thirty-one".