1359286681631 has 4 divisors (see below), whose sum is σ = 1406158636200. Its totient is φ = 1312414727064.

The previous prime is 1359286681619. The next prime is 1359286681639. The reversal of 1359286681631 is 1361866829531.

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 1359286681631 - 2¹⁰ = 1359286680607 is a prime.

It is a super-2 number, since 2×1359286681631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1359286681639) 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, 23435977241 + ... + 23435977298.

It is an arithmetic number, because the mean of its divisors is an integer number (351539659050).

Almost surely, 2^{1359286681631} is an apocalyptic number.

1359286681631 is a deficient number, since it is larger than the sum of its proper divisors (46871954569).

1359286681631 is an equidigital number, since it uses as much as digits as its factorization.

1359286681631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46871954568.

The product of its digits is 11197440, while the sum is 59.

The spelling of 1359286681631 in words is "one trillion, three hundred fifty-nine billion, two hundred eighty-six million, six hundred eighty-one thousand, six hundred thirty-one".