136881849349812 has 96 divisors (see below), whose sum is σ = 372473138016000. Its totient is φ = 39108520139136.

The previous prime is 136881849349727. The next prime is 136881849349859. The reversal of 136881849349812 is 218943948188631.

136881849349812 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331827478 + ... + 332239730.

It is an arithmetic number, because the mean of its divisors is an integer number (3879928521000).

Almost surely, 2^{136881849349812} is an apocalyptic number.

136881849349812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

136881849349812 is an abundant number, since it is smaller than the sum of its proper divisors (235591288666188).

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

136881849349812 is a wasteful number, since it uses less digits than its factorization.

136881849349812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492950 (or 492934 counting only the distinct ones).

The product of its digits is 573308928, while the sum is 75.

The spelling of 136881849349812 in words is "one hundred thirty-six trillion, eight hundred eighty-one billion, eight hundred forty-nine million, three hundred forty-nine thousand, eight hundred twelve".