12115523754 has 32 divisors (see below), whose sum is σ = 27018555840. Its totient is φ = 4024232496.

The previous prime is 12115523753. The next prime is 12115523839. The reversal of 12115523754 is 45732551121.

12115523754 is a `hidden beast` number, since 1 + 21 + 1 + 552 + 37 + 54 = 666.

It is not an unprimeable number, because it can be changed into a prime (12115523753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381117 + ... + 411680.

It is an arithmetic number, because the mean of its divisors is an integer number (844329870).

Almost surely, 2^12115523754 is an apocalyptic number.

12115523754 is an abundant number, since it is smaller than the sum of its proper divisors (14903032086).

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

12115523754 is a wasteful number, since it uses less digits than its factorization.

12115523754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793091 (or 793085 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The spelling of 12115523754 in words is "twelve billion, one hundred fifteen million, five hundred twenty-three thousand, seven hundred fifty-four".