1350543663781 has 16 divisors (see below), whose sum is σ = 1478931249600. Its totient is φ = 1225798398720.

The previous prime is 1350543663713. The next prime is 1350543663787. The reversal of 1350543663781 is 1873663450531.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1350543663781 - 2⁷ = 1350543663653 is a prime.

It is a super-2 number, since 2×1350543663781² (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 (1350543663787) 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, 2738356 + ... + 3193693.

It is an arithmetic number, because the mean of its divisors is an integer number (92433203100).

Almost surely, 2^{1350543663781} is an apocalyptic number.

It is an amenable number.

1350543663781 is a deficient number, since it is larger than the sum of its proper divisors (128387585819).

1350543663781 is a wasteful number, since it uses less digits than its factorization.

1350543663781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932356.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 1350543663781 in words is "one trillion, three hundred fifty billion, five hundred forty-three million, six hundred sixty-three thousand, seven hundred eighty-one".