6411981497759 has 8 divisors (see below), whose sum is σ = 6514039688640. Its totient is φ = 6310307707776.

The previous prime is 6411981497749. The next prime is 6411981497827. The reversal of 6411981497759 is 9577941891146.

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 6411981497759 - 2¹² = 6411981493663 is a prime.

It is a super-3 number, since 3×6411981497759³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6411981497692 and 6411981497701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6411981497749) 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, 96066599 + ... + 96133320.

It is an arithmetic number, because the mean of its divisors is an integer number (814254961080).

Almost surely, 2^{6411981497759} is an apocalyptic number.

6411981497759 is a deficient number, since it is larger than the sum of its proper divisors (102058190881).

6411981497759 is a wasteful number, since it uses less digits than its factorization.

6411981497759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192200449.

The product of its digits is 137168640, while the sum is 71.

The spelling of 6411981497759 in words is "six trillion, four hundred eleven billion, nine hundred eighty-one million, four hundred ninety-seven thousand, seven hundred fifty-nine".