1368135798 has 8 divisors (see below), whose sum is σ = 2736271608. Its totient is φ = 456045264.

The previous prime is 1368135787. The next prime is 1368135827. The reversal of 1368135798 is 8975318631.

It is a sphenic number, since it is the product of 3 distinct primes.

1368135798 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1368135798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114011311 + ... + 114011322.

It is an arithmetic number, because the mean of its divisors is an integer number (342033951).

Almost surely, 2^1368135798 is an apocalyptic number.

1368135798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1368135798 is a wasteful number, since it uses less digits than its factorization.

1368135798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228022638.

The product of its digits is 1088640, while the sum is 51.

The square root of 1368135798 is about 36988.3197509700. The cubic root of 1368135798 is about 1110.1365516611.

The spelling of 1368135798 in words is "one billion, three hundred sixty-eight million, one hundred thirty-five thousand, seven hundred ninety-eight".