1368879271 has 4 divisors (see below), whose sum is σ = 1369130472. Its totient is φ = 1368628072.

The previous prime is 1368879233. The next prime is 1368879311. The reversal of 1368879271 is 1729788631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1729788631 = 15619 ⋅110749.

It is a cyclic number.

It is not a de Polignac number, because 1368879271 - 2⁷ = 1368879143 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 (1368879221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117241 + ... + 128386.

It is an arithmetic number, because the mean of its divisors is an integer number (342282618).

Almost surely, 2^1368879271 is an apocalyptic number.

1368879271 is a deficient number, since it is larger than the sum of its proper divisors (251201).

1368879271 is an equidigital number, since it uses as much as digits as its factorization.

1368879271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251200.

The product of its digits is 1016064, while the sum is 52.

The square root of 1368879271 is about 36998.3684910565. The cubic root of 1368879271 is about 1110.3376055559.

The spelling of 1368879271 in words is "one billion, three hundred sixty-eight million, eight hundred seventy-nine thousand, two hundred seventy-one".