27131895028 has 12 divisors (see below), whose sum is σ = 54263790112. Its totient is φ = 11627955000.

The previous prime is 27131894963. The next prime is 27131895067. The reversal of 27131895028 is 82059813172.

It is a happy number.

27131895028 is an admirable number.

It is a super-2 number, since 2×27131895028² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484498098 + ... + 484498153.

Almost surely, 2^27131895028 is an apocalyptic number.

27131895028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27131895028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27131895028 is a wasteful number, since it uses less digits than its factorization.

27131895028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968996262 (or 968996260 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 27131895028 in words is "twenty-seven billion, one hundred thirty-one million, eight hundred ninety-five thousand, twenty-eight".