1351368536391 has 8 divisors (see below), whose sum is σ = 2002027461360. Its totient is φ = 900912357576.

The previous prime is 1351368536387. The next prime is 1351368536393. The reversal of 1351368536391 is 1936358631531.

1351368536391 is a `hidden beast` number, since 1 + 3 + 5 + 13 + 6 + 8 + 536 + 3 + 91 = 666.

It is not a de Polignac number, because 1351368536391 - 2² = 1351368536387 is a prime.

It is a super-2 number, since 2×1351368536391² (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 (1351368536393) 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, 25025343240 + ... + 25025343293.

It is an arithmetic number, because the mean of its divisors is an integer number (250253432670).

Almost surely, 2^{1351368536391} is an apocalyptic number.

1351368536391 is a deficient number, since it is larger than the sum of its proper divisors (650658924969).

1351368536391 is an equidigital number, since it uses as much as digits as its factorization.

1351368536391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50050686542 (or 50050686536 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 54.

The spelling of 1351368536391 in words is "one trillion, three hundred fifty-one billion, three hundred sixty-eight million, five hundred thirty-six thousand, three hundred ninety-one".