3644172464643 has 24 divisors (see below), whose sum is σ = 5374705482432. Its totient is φ = 2378461333248.

The previous prime is 3644172464599. The next prime is 3644172464683. The reversal of 3644172464643 is 3464642714463.

3644172464643 is a `hidden beast` number, since 3 + 6 + 4 + 4 + 172 + 4 + 6 + 464 + 3 = 666.

It is not a de Polignac number, because 3644172464643 - 2⁶ = 3644172464579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3644172464643.

It is not an unprimeable number, because it can be changed into a prime (3644172464683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8029446 + ... + 8471147.

It is an arithmetic number, because the mean of its divisors is an integer number (223946061768).

Almost surely, 2^{3644172464643} is an apocalyptic number.

3644172464643 is a deficient number, since it is larger than the sum of its proper divisors (1730533017789).

3644172464643 is a wasteful number, since it uses less digits than its factorization.

3644172464643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16501115 (or 16501112 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 54.

The spelling of 3644172464643 in words is "three trillion, six hundred forty-four billion, one hundred seventy-two million, four hundred sixty-four thousand, six hundred forty-three".