268261693 has 8 divisors (see below), whose sum is σ = 316474880. Its totient is φ = 222521040.

The previous prime is 268261691. The next prime is 268261699. The reversal of 268261693 is 396162862.

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

It is not a de Polignac number, because 268261693 - 2¹ = 268261691 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268261691) 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, 617898 + ... + 618331.

It is an arithmetic number, because the mean of its divisors is an integer number (39559360).

Almost surely, 2^268261693 is an apocalyptic number.

It is an amenable number.

268261693 is a deficient number, since it is larger than the sum of its proper divisors (48213187).

268261693 is a wasteful number, since it uses less digits than its factorization.

268261693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236267.

The product of its digits is 186624, while the sum is 43.

The square root of 268261693 is about 16378.6963156412. The cubic root of 268261693 is about 644.9403570433.

The spelling of 268261693 in words is "two hundred sixty-eight million, two hundred sixty-one thousand, six hundred ninety-three".