12135541786 has 8 divisors (see below), whose sum is σ = 18626645664. Its totient is φ = 5926659900.

The previous prime is 12135541741. The next prime is 12135541823. The reversal of 12135541786 is 68714553121.

12135541786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70555390 + ... + 70555561.

It is an arithmetic number, because the mean of its divisors is an integer number (2328330708).

Almost surely, 2^12135541786 is an apocalyptic number.

12135541786 is a deficient number, since it is larger than the sum of its proper divisors (6491103878).

12135541786 is a wasteful number, since it uses less digits than its factorization.

12135541786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141110996.

The product of its digits is 201600, while the sum is 43.

The spelling of 12135541786 in words is "twelve billion, one hundred thirty-five million, five hundred forty-one thousand, seven hundred eighty-six".