1361806362043 has 4 divisors (see below), whose sum is σ = 1361857938840. Its totient is φ = 1361754785248.

The previous prime is 1361806362019. The next prime is 1361806362131. The reversal of 1361806362043 is 3402636081631.

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 1361806362043 - 2⁵ = 1361806362011 is a prime.

It is a super-2 number, since 2×1361806362043² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361806360043) 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, 25748773 + ... + 25801606.

It is an arithmetic number, because the mean of its divisors is an integer number (340464484710).

Almost surely, 2^{1361806362043} is an apocalyptic number.

1361806362043 is a deficient number, since it is larger than the sum of its proper divisors (51576797).

1361806362043 is an equidigital number, since it uses as much as digits as its factorization.

1361806362043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51576796.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 1361806362043 in words is "one trillion, three hundred sixty-one billion, eight hundred six million, three hundred sixty-two thousand, forty-three".