136844644650 has 144 divisors (see below), whose sum is σ = 408396673440. Its totient is φ = 30200150400.

The previous prime is 136844644637. The next prime is 136844644721. The reversal of 136844644650 is 56446448631.

136844644650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 136844644593 and 136844644602.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 107856 + ... + 534155.

It is an arithmetic number, because the mean of its divisors is an integer number (2836088010).

Almost surely, 2^136844644650 is an apocalyptic number.

136844644650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136844644650 is an abundant number, since it is smaller than the sum of its proper divisors (271552028790).

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

136844644650 is a wasteful number, since it uses less digits than its factorization.

136844644650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642069 (or 642057 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 51.

The spelling of 136844644650 in words is "one hundred thirty-six billion, eight hundred forty-four million, six hundred forty-four thousand, six hundred fifty".