12057538827 has 6 divisors (see below), whose sum is σ = 16076972028. Its totient is φ = 8038232424.

The previous prime is 12057538793. The next prime is 12057538879. The reversal of 12057538827 is 72883575021.

It is not a de Polignac number, because 12057538827 - 2⁶ = 12057538763 is a prime.

It is a super-2 number, since 2×12057538827² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12057538027) 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 5 ways as a sum of consecutive naturals, for example, 158493 + ... + 221889.

It is an arithmetic number, because the mean of its divisors is an integer number (2679495338).

Almost surely, 2^12057538827 is an apocalyptic number.

12057538827 is a deficient number, since it is larger than the sum of its proper divisors (4019433201).

12057538827 is an frugal number, since it uses more digits than its factorization.

12057538827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126797 (or 63400 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

Multiplying 12057538827 by its sum of digits (48), we get a square (578761863696 = 760764²).

The spelling of 12057538827 in words is "twelve billion, fifty-seven million, five hundred thirty-eight thousand, eight hundred twenty-seven".