3645433671 has 24 divisors (see below), whose sum is σ = 5347034112. Its totient is φ = 2207528400.

The previous prime is 3645433643. The next prime is 3645433717. The reversal of 3645433671 is 1763345463.

3645433671 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3645433671 - 2⁷ = 3645433543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645433171) 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 23 ways as a sum of consecutive naturals, for example, 530560 + ... + 537386.

It is an arithmetic number, because the mean of its divisors is an integer number (222793088).

Almost surely, 2^3645433671 is an apocalyptic number.

3645433671 is a deficient number, since it is larger than the sum of its proper divisors (1701600441).

3645433671 is a wasteful number, since it uses less digits than its factorization.

3645433671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8323 (or 8312 counting only the distinct ones).

The product of its digits is 544320, while the sum is 42.

The square root of 3645433671 is about 60377.4268332131. The cubic root of 3645433671 is about 1539.0393839079.

It can be divided in two parts, 36454 and 33671, that added together give a triangular number (70125 = T₃₇₄).

The spelling of 3645433671 in words is "three billion, six hundred forty-five million, four hundred thirty-three thousand, six hundred seventy-one".