7939441091 has 4 divisors (see below), whose sum is σ = 8048200632. Its totient is φ = 7830681552.

The previous prime is 7939441073. The next prime is 7939441129. The reversal of 7939441091 is 1901449397.

7939441091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1901449397 = 2591 ⋅733867.

It is a cyclic number.

It is not a de Polignac number, because 7939441091 - 2¹⁴ = 7939424707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7939441291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54379661 + ... + 54379806.

It is an arithmetic number, because the mean of its divisors is an integer number (2012050158).

Almost surely, 2^7939441091 is an apocalyptic number.

7939441091 is a deficient number, since it is larger than the sum of its proper divisors (108759541).

7939441091 is a wasteful number, since it uses less digits than its factorization.

7939441091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108759540.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 7939441091 is about 89103.5414054907. The cubic root of 7939441091 is about 1994.9406364624.

The spelling of 7939441091 in words is "seven billion, nine hundred thirty-nine million, four hundred forty-one thousand, ninety-one".