3984518688331 has 8 divisors (see below), whose sum is σ = 4032592187904. Its totient is φ = 3936446790120.

The previous prime is 3984518688313. The next prime is 3984518688341. The reversal of 3984518688331 is 1338868154893.

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 3984518688331 - 2⁹ = 3984518687819 is a prime.

It is a super-2 number, since 2×3984518688331² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3984518688341) 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, 5051166 + ... + 5786476.

It is an arithmetic number, because the mean of its divisors is an integer number (504074023488).

Almost surely, 2^{3984518688331} is an apocalyptic number.

3984518688331 is a deficient number, since it is larger than the sum of its proper divisors (48073499573).

3984518688331 is an equidigital number, since it uses as much as digits as its factorization.

3984518688331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800681.

The product of its digits is 119439360, while the sum is 67.

The spelling of 3984518688331 in words is "three trillion, nine hundred eighty-four billion, five hundred eighteen million, six hundred eighty-eight thousand, three hundred thirty-one".