1363431863 has 4 divisors (see below), whose sum is σ = 1407413568. Its totient is φ = 1319450160.

The previous prime is 1363431859. The next prime is 1363431869. The reversal of 1363431863 is 3681343631.

It is a happy number.

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 1363431863 - 2² = 1363431859 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 (1363431869) 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, 21990806 + ... + 21990867.

It is an arithmetic number, because the mean of its divisors is an integer number (351853392).

Almost surely, 2^1363431863 is an apocalyptic number.

1363431863 is a deficient number, since it is larger than the sum of its proper divisors (43981705).

1363431863 is an equidigital number, since it uses as much as digits as its factorization.

1363431863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43981704.

The product of its digits is 93312, while the sum is 38.

The square root of 1363431863 is about 36924.6782382731. The cubic root of 1363431863 is about 1108.8627973962.

The spelling of 1363431863 in words is "one billion, three hundred sixty-three million, four hundred thirty-one thousand, eight hundred sixty-three".