1368859705 has 4 divisors (see below), whose sum is σ = 1642631652. Its totient is φ = 1095087760.

The previous prime is 1368859699. The next prime is 1368859717. The reversal of 1368859705 is 5079588631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 358382761 + 1010476944 = 18931^2 + 31788^2 .

It is not a de Polignac number, because 1368859705 - 2⁷ = 1368859577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136885966 + ... + 136885975.

It is an arithmetic number, because the mean of its divisors is an integer number (410657913).

Almost surely, 2^1368859705 is an apocalyptic number.

It is an amenable number.

1368859705 is a deficient number, since it is larger than the sum of its proper divisors (273771947).

1368859705 is an equidigital number, since it uses as much as digits as its factorization.

1368859705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273771946.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The square root of 1368859705 is about 36998.1040730468. The cubic root of 1368859705 is about 1110.3323153477.

The spelling of 1368859705 in words is "one billion, three hundred sixty-eight million, eight hundred fifty-nine thousand, seven hundred five".