268187473 has 8 divisors (see below), whose sum is σ = 276994728. Its totient is φ = 259519104.

The previous prime is 268187453. The next prime is 268187483. The reversal of 268187473 is 374781862.

It can be written as a sum of positive squares in 4 ways, for example, as 66064384 + 202123089 = 8128^2 + 14217^2 .

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 268187473 - 2²⁵ = 234633041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268187453) 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, 30790 + ... + 38527.

It is an arithmetic number, because the mean of its divisors is an integer number (34624341).

Almost surely, 2^268187473 is an apocalyptic number.

It is an amenable number.

268187473 is a deficient number, since it is larger than the sum of its proper divisors (8807255).

268187473 is an equidigital number, since it uses as much as digits as its factorization.

268187473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69443.

The product of its digits is 451584, while the sum is 46.

The square root of 268187473 is about 16376.4304108069. The cubic root of 268187473 is about 644.8808729777.

The spelling of 268187473 in words is "two hundred sixty-eight million, one hundred eighty-seven thousand, four hundred seventy-three".