1345785811963 has 2 divisors, whose sum is σ = 1345785811964. Its totient is φ = 1345785811962.

The previous prime is 1345785811919. The next prime is 1345785811967. The reversal of 1345785811963 is 3691185875431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1345785811963 - 2⁹ = 1345785811451 is a prime.

It is a super-2 number, since 2×1345785811963² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1345785811967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672892905981 + 672892905982.

It is an arithmetic number, because the mean of its divisors is an integer number (672892905982).

Almost surely, 2^{1345785811963} is an apocalyptic number.

1345785811963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345785811963 is an equidigital number, since it uses as much as digits as its factorization.

1345785811963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21772800, while the sum is 61.

The spelling of 1345785811963 in words is "one trillion, three hundred forty-five billion, seven hundred eighty-five million, eight hundred eleven thousand, nine hundred sixty-three".