1368256911 has 16 divisors (see below), whose sum is σ = 2085861888. Its totient is φ = 781524000.

The previous prime is 1368256907. The next prime is 1368256919. The reversal of 1368256911 is 1196528631.

It is not a de Polignac number, because 1368256911 - 2² = 1368256907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368256919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40801 + ... + 66341.

It is an arithmetic number, because the mean of its divisors is an integer number (130366368).

Almost surely, 2^1368256911 is an apocalyptic number.

1368256911 is a deficient number, since it is larger than the sum of its proper divisors (717604977).

1368256911 is a wasteful number, since it uses less digits than its factorization.

1368256911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102.

The product of its digits is 77760, while the sum is 42.

The square root of 1368256911 is about 36989.9568937300. The cubic root of 1368256911 is about 1110.1693086436.

The spelling of 1368256911 in words is "one billion, three hundred sixty-eight million, two hundred fifty-six thousand, nine hundred eleven".