617681438841 has 8 divisors (see below), whose sum is σ = 823579748640. Its totient is φ = 411785377472.

The previous prime is 617681438837. The next prime is 617681438861. The reversal of 617681438841 is 148834186716.

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 617681438841 - 2² = 617681438837 is a prime.

It is not an unprimeable number, because it can be changed into a prime (617681438861) 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, 244081 + ... + 1137953.

It is an arithmetic number, because the mean of its divisors is an integer number (102947468580).

Almost surely, 2^617681438841 is an apocalyptic number.

It is an amenable number.

617681438841 is a deficient number, since it is larger than the sum of its proper divisors (205898309799).

617681438841 is a wasteful number, since it uses less digits than its factorization.

617681438841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124215.

The product of its digits is 6193152, while the sum is 57.

The spelling of 617681438841 in words is "six hundred seventeen billion, six hundred eighty-one million, four hundred thirty-eight thousand, eight hundred forty-one".