3719105850221 has 4 divisors (see below), whose sum is σ = 3730987977852. Its totient is φ = 3707223722592.

The previous prime is 3719105850217. The next prime is 3719105850227. The reversal of 3719105850221 is 1220585019173.

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 39595428196 + 3679510422025 = 198986^2 + 1918205^2 .

It is a cyclic number.

It is not a de Polignac number, because 3719105850221 - 2² = 3719105850217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3719105850227) 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, 5941063346 + ... + 5941063971.

It is an arithmetic number, because the mean of its divisors is an integer number (932746994463).

Almost surely, 2^{3719105850221} is an apocalyptic number.

It is an amenable number.

3719105850221 is a deficient number, since it is larger than the sum of its proper divisors (11882127631).

3719105850221 is a wasteful number, since it uses less digits than its factorization.

3719105850221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11882127630.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 3719105850221 in words is "three trillion, seven hundred nineteen billion, one hundred five million, eight hundred fifty thousand, two hundred twenty-one".