1368809901 has 16 divisors (see below), whose sum is σ = 2046475200. Its totient is φ = 904166064.

The previous prime is 1368809863. The next prime is 1368809917. The reversal of 1368809901 is 1099088631.

It is not a de Polignac number, because 1368809901 - 2¹⁰ = 1368808877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368809801) 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, 229611 + ... + 235496.

It is an arithmetic number, because the mean of its divisors is an integer number (127904700).

Almost surely, 2^1368809901 is an apocalyptic number.

It is an amenable number.

1368809901 is a deficient number, since it is larger than the sum of its proper divisors (677665299).

1368809901 is a wasteful number, since it uses less digits than its factorization.

1368809901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465225 (or 465219 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1368809901 is about 36997.4310054090. The cubic root of 1368809901 is about 1110.3188492340.

The spelling of 1368809901 in words is "one billion, three hundred sixty-eight million, eight hundred nine thousand, nine hundred one".