3663979351481 has 8 divisors (see below), whose sum is σ = 3929590566720. Its totient is φ = 3405645155952.

The previous prime is 3663979351477. The next prime is 3663979351493. The reversal of 3663979351481 is 1841539793663.

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 3663979351481 - 2² = 3663979351477 is a prime.

It is a super-2 number, since 2×3663979351481² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3663979350481) 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, 1819253885 + ... + 1819255898.

It is an arithmetic number, because the mean of its divisors is an integer number (491198820840).

Almost surely, 2^{3663979351481} is an apocalyptic number.

It is an amenable number.

3663979351481 is a deficient number, since it is larger than the sum of its proper divisors (265611215239).

3663979351481 is a wasteful number, since it uses less digits than its factorization.

3663979351481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3638509855.

The product of its digits is 88179840, while the sum is 65.

The spelling of 3663979351481 in words is "three trillion, six hundred sixty-three billion, nine hundred seventy-nine million, three hundred fifty-one thousand, four hundred eighty-one".