4626206621 has 4 divisors (see below), whose sum is σ = 4869691200. Its totient is φ = 4382722044.

The previous prime is 4626206551. The next prime is 4626206623. The reversal of 4626206621 is 1266026264.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4626206621 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 (4626206623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121742261 + ... + 121742298.

It is an arithmetic number, because the mean of its divisors is an integer number (1217422800).

Almost surely, 2^4626206621 is an apocalyptic number.

It is an amenable number.

4626206621 is a deficient number, since it is larger than the sum of its proper divisors (243484579).

4626206621 is a wasteful number, since it uses less digits than its factorization.

4626206621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243484578.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 4626206621 is about 68016.2232191703. The cubic root of 4626206621 is about 1666.2558043547.

The spelling of 4626206621 in words is "four billion, six hundred twenty-six million, two hundred six thousand, six hundred twenty-one".