4665868621 has 32 divisors (see below), whose sum is σ = 5042995200. Its totient is φ = 4309381440.

The previous prime is 4665868601. The next prime is 4665868633. The reversal of 4665868621 is 1268685664.

It is a cyclic number.

It is not a de Polignac number, because 4665868621 - 2¹³ = 4665860429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4665868601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12310810 + ... + 12311188.

It is an arithmetic number, because the mean of its divisors is an integer number (157593600).

Almost surely, 2^4665868621 is an apocalyptic number.

It is an amenable number.

4665868621 is a deficient number, since it is larger than the sum of its proper divisors (377126579).

4665868621 is a wasteful number, since it uses less digits than its factorization.

4665868621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its digits is 3317760, while the sum is 52.

The square root of 4665868621 is about 68307.1637604724. The cubic root of 4665868621 is about 1671.0040481126.

The spelling of 4665868621 in words is "four billion, six hundred sixty-five million, eight hundred sixty-eight thousand, six hundred twenty-one".