12136389870 has 32 divisors (see below), whose sum is σ = 31775276160. Its totient is φ = 2942155040.

The previous prime is 12136389851. The next prime is 12136389883. The reversal of 12136389870 is 7898363121.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18388140 + ... + 18388799.

It is an arithmetic number, because the mean of its divisors is an integer number (992977380).

Almost surely, 2^12136389870 is an apocalyptic number.

12136389870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12136389870 is an abundant number, since it is smaller than the sum of its proper divisors (19638886290).

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

12136389870 is a wasteful number, since it uses less digits than its factorization.

12136389870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36776960.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 12136389870 in words is "twelve billion, one hundred thirty-six million, three hundred eighty-nine thousand, eight hundred seventy".