3923981107193 has 32 divisors (see below), whose sum is σ = 4683088472832. Its totient is φ = 3217758336000.

The previous prime is 3923981107157. The next prime is 3923981107201. The reversal of 3923981107193 is 3917011893293.

It is a cyclic number.

It is not a de Polignac number, because 3923981107193 - 2²⁴ = 3923964329977 is a prime.

It is a Smith number, since the sum of its digits (56) 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 (3923981109193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29031218 + ... + 29166068.

It is an arithmetic number, because the mean of its divisors is an integer number (146346514776).

Almost surely, 2^{3923981107193} is an apocalyptic number.

It is an amenable number.

3923981107193 is a deficient number, since it is larger than the sum of its proper divisors (759107365639).

3923981107193 is a wasteful number, since it uses less digits than its factorization.

3923981107193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136865.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The spelling of 3923981107193 in words is "three trillion, nine hundred twenty-three billion, nine hundred eighty-one million, one hundred seven thousand, one hundred ninety-three".