27129411892 has 12 divisors (see below), whose sum is σ = 51792513696. Its totient is φ = 12331550840.

The previous prime is 27129411887. The next prime is 27129411929. The reversal of 27129411892 is 29811492172.

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, 308288728 + ... + 308288815.

It is an arithmetic number, because the mean of its divisors is an integer number (4316042808).

Almost surely, 2^27129411892 is an apocalyptic number.

27129411892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27129411892 is a deficient number, since it is larger than the sum of its proper divisors (24663101804).

27129411892 is a wasteful number, since it uses less digits than its factorization.

27129411892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616577558 (or 616577556 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The spelling of 27129411892 in words is "twenty-seven billion, one hundred twenty-nine million, four hundred eleven thousand, eight hundred ninety-two".