1361766671631 has 8 divisors (see below), whose sum is σ = 2017432106160. Its totient is φ = 907844447736.

The previous prime is 1361766671621. The next prime is 1361766671647.

1361766671631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1361766671631 - 2⁶ = 1361766671567 is a prime.

It is a super-2 number, since 2×1361766671631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361766671621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25217901300 + ... + 25217901353.

It is an arithmetic number, because the mean of its divisors is an integer number (252179013270).

Almost surely, 2^{1361766671631} is an apocalyptic number.

1361766671631 is a deficient number, since it is larger than the sum of its proper divisors (655665434529).

1361766671631 is an equidigital number, since it uses as much as digits as its factorization.

1361766671631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50435802662 (or 50435802656 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 54.

The spelling of 1361766671631 in words is "one trillion, three hundred sixty-one billion, seven hundred sixty-six million, six hundred seventy-one thousand, six hundred thirty-one".