3919091909193 has 12 divisors (see below), whose sum is σ = 5856114347460. Its totient is φ = 2522633872416.

The previous prime is 3919091909153. The next prime is 3919091909203.

3919091909193 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 1099201271184 + 2819890638009 = 1048428^2 + 1679253^2 .

It is not a de Polignac number, because 3919091909193 - 2⁶ = 3919091909129 is a prime.

It is a super-2 number, since 2×3919091909193² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3919091909193.

It is not an unprimeable number, because it can be changed into a prime (3919091909153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7507838646 + ... + 7507839167.

It is an arithmetic number, because the mean of its divisors is an integer number (488009528955).

Almost surely, 2^{3919091909193} is an apocalyptic number.

It is an amenable number.

3919091909193 is a deficient number, since it is larger than the sum of its proper divisors (1937022438267).

3919091909193 is a wasteful number, since it uses less digits than its factorization.

3919091909193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15015677848 (or 15015677845 counting only the distinct ones).

The product of its (nonzero) digits is 4782969, while the sum is 63.

It can be divided in two parts, 3919091 and 909193, that added together give a palindrome (4828284).

The spelling of 3919091909193 in words is "three trillion, nine hundred nineteen billion, ninety-one million, nine hundred nine thousand, one hundred ninety-three".