1238965774017 has 16 divisors (see below), whose sum is σ = 1670564917440. Its totient is φ = 816672454400.

The previous prime is 1238965774009. The next prime is 1238965774019. The reversal of 1238965774017 is 7104775698321.

It is a cyclic number.

It is not a de Polignac number, because 1238965774017 - 2³ = 1238965774009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1238965774019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16506142 + ... + 16581032.

It is an arithmetic number, because the mean of its divisors is an integer number (104410307340).

It is a 1-persistent number, because it is pandigital, but 2⋅1238965774017 = 2477931548034 is not.

Almost surely, 2^{1238965774017} is an apocalyptic number.

It is an amenable number.

1238965774017 is a deficient number, since it is larger than the sum of its proper divisors (431599143423).

1238965774017 is an equidigital number, since it uses as much as digits as its factorization.

1238965774017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136944.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 1238965774017 in words is "one trillion, two hundred thirty-eight billion, nine hundred sixty-five million, seven hundred seventy-four thousand, seventeen".