3719644345 has 16 divisors (see below), whose sum is σ = 4701003840. Its totient is φ = 2817595584.

The previous prime is 3719644333. The next prime is 3719644361. The reversal of 3719644345 is 5434469173.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3719644345 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3719644295 and 3719644304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188487 + ... + 207283.

It is an arithmetic number, because the mean of its divisors is an integer number (293812740).

Almost surely, 2^3719644345 is an apocalyptic number.

It is an amenable number.

3719644345 is a deficient number, since it is larger than the sum of its proper divisors (981359495).

3719644345 is a wasteful number, since it uses less digits than its factorization.

3719644345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20904.

The product of its digits is 1088640, while the sum is 46.

The square root of 3719644345 is about 60988.8870614967. The cubic root of 3719644345 is about 1549.4127980373.

The spelling of 3719644345 in words is "three billion, seven hundred nineteen million, six hundred forty-four thousand, three hundred forty-five".