1238315675681 has 8 divisors (see below), whose sum is σ = 1415235175680. Its totient is φ = 1061400490848.

The previous prime is 1238315675677. The next prime is 1238315675713. The reversal of 1238315675681 is 1865765138321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1238315675681 - 2² = 1238315675677 is a prime.

It is a super-2 number, since 2×1238315675681² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1238315675281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438521 + ... + 1633686.

It is an arithmetic number, because the mean of its divisors is an integer number (176904396960).

Almost surely, 2^{1238315675681} is an apocalyptic number.

It is an amenable number.

1238315675681 is a deficient number, since it is larger than the sum of its proper divisors (176919499999).

1238315675681 is an equidigital number, since it uses as much as digits as its factorization.

1238315675681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157583.

The product of its digits is 7257600, while the sum is 56.

The spelling of 1238315675681 in words is "one trillion, two hundred thirty-eight billion, three hundred fifteen million, six hundred seventy-five thousand, six hundred eighty-one".