3981433957474 has 32 divisors (see below), whose sum is σ = 6287526725760. Its totient is φ = 1887186926592.

The previous prime is 3981433957471. The next prime is 3981433957489. The reversal of 3981433957474 is 4747593341893.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3981433957471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3149752 + ... + 4228924.

It is an arithmetic number, because the mean of its divisors is an integer number (196485210180).

Almost surely, 2^{3981433957474} is an apocalyptic number.

3981433957474 is a deficient number, since it is larger than the sum of its proper divisors (2306092768286).

3981433957474 is a wasteful number, since it uses less digits than its factorization.

3981433957474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079914.

The product of its digits is 274337280, while the sum is 67.

The spelling of 3981433957474 in words is "three trillion, nine hundred eighty-one billion, four hundred thirty-three million, nine hundred fifty-seven thousand, four hundred seventy-four".