3923981107194 has 16 divisors (see below), whose sum is σ = 7855303632480. Its totient is φ = 1306770132720.

The previous prime is 3923981107157. The next prime is 3923981107201. The reversal of 3923981107194 is 4917011893293.

It is a happy 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, 305885472 + ... + 305898299.

It is an arithmetic number, because the mean of its divisors is an integer number (490956477030).

Almost surely, 2^{3923981107194} is an apocalyptic number.

3923981107194 is an abundant number, since it is smaller than the sum of its proper divisors (3931322525286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3923981107194 is a wasteful number, since it uses less digits than its factorization.

3923981107194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611784845.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 3923981107194 in words is "three trillion, nine hundred twenty-three billion, nine hundred eighty-one million, one hundred seven thousand, one hundred ninety-four".