1361795641599 has 64 divisors (see below), whose sum is σ = 1958403686400. Its totient is φ = 839126241792.

The previous prime is 1361795641579. The next prime is 1361795641603. The reversal of 1361795641599 is 9951465971631.

It is a Cunningham number, because it is equal to 1166960²-1.

It is not a de Polignac number, because 1361795641599 - 2¹⁹ = 1361795117311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361795641579) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260229687 + ... + 260234919.

It is an arithmetic number, because the mean of its divisors is an integer number (30600057600).

Almost surely, 2^{1361795641599} is an apocalyptic number.

1361795641599 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1361795641599 is a deficient number, since it is larger than the sum of its proper divisors (596608044801).

1361795641599 is a wasteful number, since it uses less digits than its factorization.

1361795641599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884.

The product of its digits is 55112400, while the sum is 66.

The spelling of 1361795641599 in words is "one trillion, three hundred sixty-one billion, seven hundred ninety-five million, six hundred forty-one thousand, five hundred ninety-nine".