136180926728 has 128 divisors (see below), whose sum is σ = 326318699520. Its totient is φ = 51732898560.

The previous prime is 136180926703. The next prime is 136180926737. The reversal of 136180926728 is 827629081631.

136180926728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 369027²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 136180926728.

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, 16232951 + ... + 16241337.

It is an arithmetic number, because the mean of its divisors is an integer number (2549364840).

Almost surely, 2^136180926728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136180926728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163159349760).

136180926728 is an abundant number, since it is smaller than the sum of its proper divisors (190137772792).

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

136180926728 is a wasteful number, since it uses less digits than its factorization.

136180926728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9067 (or 9063 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 136180926728 in words is "one hundred thirty-six billion, one hundred eighty million, nine hundred twenty-six thousand, seven hundred twenty-eight".