1268858271 has 16 divisors (see below), whose sum is σ = 1707285888. Its totient is φ = 838188000.

The previous prime is 1268858249. The next prime is 1268858299. The reversal of 1268858271 is 1728588621.

It is not a de Polignac number, because 1268858271 - 2⁶ = 1268858207 is a prime.

It is a super-2 number, since 2×1268858271² = 3220002623770218882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1268858271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268858471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311196 + ... + 315246.

It is an arithmetic number, because the mean of its divisors is an integer number (106705368).

Almost surely, 2^1268858271 is an apocalyptic number.

1268858271 is a deficient number, since it is larger than the sum of its proper divisors (438427617).

1268858271 is a wasteful number, since it uses less digits than its factorization.

1268858271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982.

The product of its digits is 430080, while the sum is 48.

The square root of 1268858271 is about 35621.0369164066. The cubic root of 1268858271 is about 1082.6075171579.

The spelling of 1268858271 in words is "one billion, two hundred sixty-eight million, eight hundred fifty-eight thousand, two hundred seventy-one".