268131807 has 6 divisors (see below), whose sum is σ = 387301512. Its totient is φ = 178754532.

The previous prime is 268131793. The next prime is 268131817. The reversal of 268131807 is 708131862.

It is not a de Polignac number, because 268131807 - 2⁴ = 268131791 is a prime.

It is a super-3 number, since 3×268131807³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268131817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14896203 + ... + 14896220.

It is an arithmetic number, because the mean of its divisors is an integer number (64550252).

Almost surely, 2^268131807 is an apocalyptic number.

268131807 is a deficient number, since it is larger than the sum of its proper divisors (119169705).

268131807 is a wasteful number, since it uses less digits than its factorization.

268131807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29792429 (or 29792426 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 268131807 is about 16374.7307458779. The cubic root of 268131807 is about 644.8362519243.

The spelling of 268131807 in words is "two hundred sixty-eight million, one hundred thirty-one thousand, eight hundred seven".