12386155851 has 32 divisors (see below), whose sum is σ = 19446808320. Its totient is φ = 7764688512.

The previous prime is 12386155849. The next prime is 12386155871. The reversal of 12386155851 is 15855168321.

12386155851 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 61 + 5 + 585 + 1 = 666.

It is not a de Polignac number, because 12386155851 - 2¹ = 12386155849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12386155797 and 12386155806.

It is not an unprimeable number, because it can be changed into a prime (12386155871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522216 + ... + 545418.

It is an arithmetic number, because the mean of its divisors is an integer number (607712760).

Almost surely, 2^12386155851 is an apocalyptic number.

12386155851 is a deficient number, since it is larger than the sum of its proper divisors (7060652469).

12386155851 is a wasteful number, since it uses less digits than its factorization.

12386155851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24392 (or 24386 counting only the distinct ones).

The product of its digits is 288000, while the sum is 45.

The spelling of 12386155851 in words is "twelve billion, three hundred eighty-six million, one hundred fifty-five thousand, eight hundred fifty-one".