1368991759 has 8 divisors (see below), whose sum is σ = 1450854720. Its totient is φ = 1287277056.

The previous prime is 1368991747. The next prime is 1368991769. The reversal of 1368991759 is 9571998631.

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

It is a cyclic number.

It is not a de Polignac number, because 1368991759 - 2⁵ = 1368991727 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 (1368991769) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17754 + ... + 55255.

It is an arithmetic number, because the mean of its divisors is an integer number (181356840).

Almost surely, 2^1368991759 is an apocalyptic number.

1368991759 is a deficient number, since it is larger than the sum of its proper divisors (81862961).

1368991759 is a wasteful number, since it uses less digits than its factorization.

1368991759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74129.

The product of its digits is 3674160, while the sum is 58.

The square root of 1368991759 is about 36999.8886349675. Note that the first 3 decimals coincide. The cubic root of 1368991759 is about 1110.3680188140.

The spelling of 1368991759 in words is "one billion, three hundred sixty-eight million, nine hundred ninety-one thousand, seven hundred fifty-nine".