12154050395868 has 48 divisors (see below), whose sum is σ = 28421242930080. Its totient is φ = 4042531094784.

The previous prime is 12154050395843. The next prime is 12154050395887. The reversal of 12154050395868 is 86859305045121.

It is a super-2 number, since 2×12154050395868² (a number of 27 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 15 ways as a sum of consecutive naturals, for example, 11085730 + ... + 12132662.

It is an arithmetic number, because the mean of its divisors is an integer number (592109227710).

Almost surely, 2^{12154050395868} is an apocalyptic number.

It is an amenable number.

12154050395868 is an abundant number, since it is smaller than the sum of its proper divisors (16267192534212).

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

12154050395868 is a wasteful number, since it uses less digits than its factorization.

12154050395868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049046 (or 1049044 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 57.

The spelling of 12154050395868 in words is "twelve trillion, one hundred fifty-four billion, fifty million, three hundred ninety-five thousand, eight hundred sixty-eight".