1368809835 has 16 divisors (see below), whose sum is σ = 2191099680. Its totient is φ = 729697280.

The previous prime is 1368809821. The next prime is 1368809839. The reversal of 1368809835 is 5389088631.

It is not a de Polignac number, because 1368809835 - 2⁵ = 1368809803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1368809839) 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, 14875 + ... + 54395.

It is an arithmetic number, because the mean of its divisors is an integer number (136943730).

Almost surely, 2^1368809835 is an apocalyptic number.

1368809835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1368809835 is a deficient number, since it is larger than the sum of its proper divisors (822289845).

1368809835 is a wasteful number, since it uses less digits than its factorization.

1368809835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41838.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 1368809835 is about 36997.4301134552. The cubic root of 1368809835 is about 1110.3188313886.

The spelling of 1368809835 in words is "one billion, three hundred sixty-eight million, eight hundred nine thousand, eight hundred thirty-five".