3719641868149 has 4 divisors (see below), whose sum is σ = 3719671960140. Its totient is φ = 3719611776160.

The previous prime is 3719641868147. The next prime is 3719641868197. The reversal of 3719641868149 is 9418681469173.

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 1012981860900 + 2706660007249 = 1006470^2 + 1645193^2 .

It is a cyclic number.

It is not a de Polignac number, because 3719641868149 - 2¹ = 3719641868147 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3719641868147) 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, 14859814 + ... + 15108055.

It is an arithmetic number, because the mean of its divisors is an integer number (929917990035).

Almost surely, 2^{3719641868149} is an apocalyptic number.

It is an amenable number.

3719641868149 is a deficient number, since it is larger than the sum of its proper divisors (30091991).

3719641868149 is a wasteful number, since it uses less digits than its factorization.

3719641868149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30091990.

The product of its digits is 62705664, while the sum is 67.

The spelling of 3719641868149 in words is "three trillion, seven hundred nineteen billion, six hundred forty-one million, eight hundred sixty-eight thousand, one hundred forty-nine".