1361426686 has 8 divisors (see below), whose sum is σ = 2042459640. Its totient is φ = 680606808.

The previous prime is 1361426639. The next prime is 1361426687. The reversal of 1361426686 is 6866241631.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361426687) 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 3 ways as a sum of consecutive naturals, for example, 36201 + ... + 63508.

It is an arithmetic number, because the mean of its divisors is an integer number (255307455).

Almost surely, 2^1361426686 is an apocalyptic number.

1361426686 is a deficient number, since it is larger than the sum of its proper divisors (681032954).

1361426686 is an equidigital number, since it uses as much as digits as its factorization.

1361426686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106538.

The product of its digits is 248832, while the sum is 43.

The square root of 1361426686 is about 36897.5159868520. The cubic root of 1361426686 is about 1108.3189352166.

The spelling of 1361426686 in words is "one billion, three hundred sixty-one million, four hundred twenty-six thousand, six hundred eighty-six".