2091379601 has 4 divisors (see below), whose sum is σ = 2147903412. Its totient is φ = 2034855792.

The previous prime is 2091379513. The next prime is 2091379603. The reversal of 2091379601 is 1069731902.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1123858576 + 967521025 = 33524^2 + 31105^2 .

It is a cyclic number.

It is not a de Polignac number, because 2091379601 - 2¹⁰ = 2091378577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2091379603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28261850 + ... + 28261923.

It is an arithmetic number, because the mean of its divisors is an integer number (536975853).

Almost surely, 2^2091379601 is an apocalyptic number.

It is an amenable number.

2091379601 is a deficient number, since it is larger than the sum of its proper divisors (56523811).

2091379601 is an equidigital number, since it uses as much as digits as its factorization.

2091379601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56523810.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 2091379601 is about 45731.6039626865. The cubic root of 2091379601 is about 1278.8245232587.

The spelling of 2091379601 in words is "two billion, ninety-one million, three hundred seventy-nine thousand, six hundred one".