1361727863 has 4 divisors (see below), whose sum is σ = 1441829520. Its totient is φ = 1281626208.

The previous prime is 1361727823. The next prime is 1361727881. The reversal of 1361727863 is 3687271631.

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

It is a cyclic number.

It is not a de Polignac number, because 1361727863 - 2²² = 1357533559 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 (1361727823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40050803 + ... + 40050836.

It is an arithmetic number, because the mean of its divisors is an integer number (360457380).

Almost surely, 2^1361727863 is an apocalyptic number.

1361727863 is a deficient number, since it is larger than the sum of its proper divisors (80101657).

1361727863 is an equidigital number, since it uses as much as digits as its factorization.

1361727863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80101656.

The product of its digits is 254016, while the sum is 44.

The square root of 1361727863 is about 36901.5970250611. The cubic root of 1361727863 is about 1108.4006572229.

The spelling of 1361727863 in words is "one billion, three hundred sixty-one million, seven hundred twenty-seven thousand, eight hundred sixty-three".