3646884865 has 16 divisors (see below), whose sum is σ = 4813175808. Its totient is φ = 2635782336.

The previous prime is 3646884797. The next prime is 3646884907. The reversal of 3646884865 is 5684886463.

It is a cyclic number.

It is not a de Polignac number, because 3646884865 - 2¹¹ = 3646882817 is a prime.

It is a Duffinian number.

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, 593817 + ... + 599926.

It is an arithmetic number, because the mean of its divisors is an integer number (300823488).

Almost surely, 2^3646884865 is an apocalyptic number.

It is an amenable number.

3646884865 is a deficient number, since it is larger than the sum of its proper divisors (1166290943).

3646884865 is a wasteful number, since it uses less digits than its factorization.

3646884865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193808.

The product of its digits is 26542080, while the sum is 58.

The square root of 3646884865 is about 60389.4433241440. The cubic root of 3646884865 is about 1539.2435798618.

The spelling of 3646884865 in words is "three billion, six hundred forty-six million, eight hundred eighty-four thousand, eight hundred sixty-five".