1238385809063 has 16 divisors (see below), whose sum is σ = 1403953202400. Its totient is φ = 1082872126080.

The previous prime is 1238385809051. The next prime is 1238385809069. The reversal of 1238385809063 is 3609085838321.

It is a cyclic number.

It is not a de Polignac number, because 1238385809063 - 2¹² = 1238385804967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238385809069) 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, 2910353 + ... + 3308613.

It is an arithmetic number, because the mean of its divisors is an integer number (87747075150).

Almost surely, 2^{1238385809063} is an apocalyptic number.

1238385809063 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1238385809063 is a deficient number, since it is larger than the sum of its proper divisors (165567393337).

1238385809063 is a wasteful number, since it uses less digits than its factorization.

1238385809063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410882.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 1238385809063 in words is "one trillion, two hundred thirty-eight billion, three hundred eighty-five million, eight hundred nine thousand, sixty-three".