268673793541 has 8 divisors (see below), whose sum is σ = 271804123800. Its totient is φ = 265545941760.

The previous prime is 268673793529. The next prime is 268673793569. The reversal of 268673793541 is 145397376862.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3175773316 + 265498020225 = 56354^2 + 515265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268673793541 - 2⁹ = 268673793029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 268673793541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268673793341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401106 + ... + 835603.

It is an arithmetic number, because the mean of its divisors is an integer number (33975515475).

Almost surely, 2^268673793541 is an apocalyptic number.

It is an amenable number.

268673793541 is a deficient number, since it is larger than the sum of its proper divisors (3130330259).

268673793541 is a wasteful number, since it uses less digits than its factorization.

268673793541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239239.

The product of its digits is 45722880, while the sum is 61.

The spelling of 268673793541 in words is "two hundred sixty-eight billion, six hundred seventy-three million, seven hundred ninety-three thousand, five hundred forty-one".