863941968841 has 8 divisors (see below), whose sum is σ = 1039328684480. Its totient is φ = 701546861808.

The previous prime is 863941968833. The next prime is 863941968859. The reversal of 863941968841 is 148869149368.

It is a happy number.

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 863941968841 - 2³ = 863941968833 is a prime.

It is a super-3 number, since 3×863941968841³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863941368841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3247902006 + ... + 3247902271.

It is an arithmetic number, because the mean of its divisors is an integer number (129916085560).

Almost surely, 2^863941968841 is an apocalyptic number.

It is an amenable number.

863941968841 is a deficient number, since it is larger than the sum of its proper divisors (175386715639).

863941968841 is a wasteful number, since it uses less digits than its factorization.

863941968841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495804303.

The product of its digits is 71663616, while the sum is 67.

The spelling of 863941968841 in words is "eight hundred sixty-three billion, nine hundred forty-one million, nine hundred sixty-eight thousand, eight hundred forty-one".