3642854865 has 128 divisors (see below), whose sum is σ = 6769889280. Its totient is φ = 1659571200.

The previous prime is 3642854863. The next prime is 3642854881. The reversal of 3642854865 is 5684582463.

It is not a de Polignac number, because 3642854865 - 2¹ = 3642854863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3642854863) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17264610 + ... + 17264820.

It is an arithmetic number, because the mean of its divisors is an integer number (52889760).

Almost surely, 2^3642854865 is an apocalyptic number.

It is an amenable number.

3642854865 is a deficient number, since it is larger than the sum of its proper divisors (3127034415).

3642854865 is a wasteful number, since it uses less digits than its factorization.

3642854865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its digits is 5529600, while the sum is 51.

The square root of 3642854865 is about 60356.0673420660. The cubic root of 3642854865 is about 1538.6763891226.

The spelling of 3642854865 in words is "three billion, six hundred forty-two million, eight hundred fifty-four thousand, eight hundred sixty-five".