1361401705635 has 16 divisors (see below), whose sum is σ = 2188566159360. Its totient is φ = 722639766240.

The previous prime is 1361401705627. The next prime is 1361401705637. The reversal of 1361401705635 is 5365071041631.

It is a happy number.

It is not a de Polignac number, because 1361401705635 - 2³ = 1361401705627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1361401705637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215068195 + ... + 215074524.

It is an arithmetic number, because the mean of its divisors is an integer number (136785384960).

Almost surely, 2^{1361401705635} is an apocalyptic number.

1361401705635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1361401705635 is a deficient number, since it is larger than the sum of its proper divisors (827164453725).

1361401705635 is a wasteful number, since it uses less digits than its factorization.

1361401705635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430142938.

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 1361401705635 in words is "one trillion, three hundred sixty-one billion, four hundred one million, seven hundred five thousand, six hundred thirty-five".