12154868157 has 8 divisors (see below), whose sum is σ = 17059464160. Its totient is φ = 7676758800.

The previous prime is 12154868111. The next prime is 12154868191. The reversal of 12154868157 is 75186845121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12154868157 - 2¹⁰ = 12154867133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12154868057) 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 7 ways as a sum of consecutive naturals, for example, 106621594 + ... + 106621707.

It is an arithmetic number, because the mean of its divisors is an integer number (2132433020).

Almost surely, 2^12154868157 is an apocalyptic number.

It is an amenable number.

12154868157 is a deficient number, since it is larger than the sum of its proper divisors (4904596003).

12154868157 is a wasteful number, since it uses less digits than its factorization.

12154868157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213243323.

The product of its digits is 537600, while the sum is 48.

The spelling of 12154868157 in words is "twelve billion, one hundred fifty-four million, eight hundred sixty-eight thousand, one hundred fifty-seven".