269731721438 has 16 divisors (see below), whose sum is σ = 406006473600. Its totient is φ = 134396706336.

The previous prime is 269731721299. The next prime is 269731721453. The reversal of 269731721438 is 834127137962.

269731721438 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 269731721438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024595 + ... + 1260657.

It is an arithmetic number, because the mean of its divisors is an integer number (25375404600).

Almost surely, 2^269731721438 is an apocalyptic number.

269731721438 is a deficient number, since it is larger than the sum of its proper divisors (136274752162).

269731721438 is a wasteful number, since it uses less digits than its factorization.

269731721438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238051.

The product of its digits is 3048192, while the sum is 53.

The spelling of 269731721438 in words is "two hundred sixty-nine billion, seven hundred thirty-one million, seven hundred twenty-one thousand, four hundred thirty-eight".