268641471 has 72 divisors (see below), whose sum is σ = 450397584. Its totient is φ = 141872640.

The previous prime is 268641469. The next prime is 268641479. The reversal of 268641471 is 174146862.

It is not a de Polignac number, because 268641471 - 2¹ = 268641469 is a prime.

It is a super-3 number, since 3×268641471³ (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 (268641479) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5068681 + ... + 5068733.

It is an arithmetic number, because the mean of its divisors is an integer number (6255522).

Almost surely, 2^268641471 is an apocalyptic number.

268641471 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

268641471 is a deficient number, since it is larger than the sum of its proper divisors (181756113).

268641471 is a wasteful number, since it uses less digits than its factorization.

268641471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 133 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 268641471 is about 16390.2858730408. The cubic root of 268641471 is about 645.2445608261.

The spelling of 268641471 in words is "two hundred sixty-eight million, six hundred forty-one thousand, four hundred seventy-one".