3981818771935 has 8 divisors (see below), whose sum is σ = 4838665849920. Its totient is φ = 3145132801824.

The previous prime is 3981818771927. The next prime is 3981818771963. The reversal of 3981818771935 is 5391778181893.

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 3981818771935 - 2³ = 3981818771927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5040276532 + ... + 5040277321.

It is an arithmetic number, because the mean of its divisors is an integer number (604833231240).

Almost surely, 2^{3981818771935} is an apocalyptic number.

3981818771935 is a deficient number, since it is larger than the sum of its proper divisors (856847077985).

3981818771935 is a wasteful number, since it uses less digits than its factorization.

3981818771935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080553937.

The product of its digits is 91445760, while the sum is 70.

The spelling of 3981818771935 in words is "three trillion, nine hundred eighty-one billion, eight hundred eighteen million, seven hundred seventy-one thousand, nine hundred thirty-five".