268729041138 has 32 divisors (see below), whose sum is σ = 539716134912. Its totient is φ = 89200342800.

The previous prime is 268729041127. The next prime is 268729041143. The reversal of 268729041138 is 831140927862.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3228795 + ... + 3310977.

It is an arithmetic number, because the mean of its divisors is an integer number (16866129216).

Almost surely, 2^268729041138 is an apocalyptic number.

268729041138 is an abundant number, since it is smaller than the sum of its proper divisors (270987093774).

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

268729041138 is a wasteful number, since it uses less digits than its factorization.

268729041138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84470.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 268729041138 in words is "two hundred sixty-eight billion, seven hundred twenty-nine million, forty-one thousand, one hundred thirty-eight".