6420620602 has 32 divisors (see below), whose sum is σ = 10743969600. Its totient is φ = 2853043200.

The previous prime is 6420620597. The next prime is 6420620627. The reversal of 6420620602 is 2060260246.

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, 221274 + ... + 248602.

It is an arithmetic number, because the mean of its divisors is an integer number (335749050).

Almost surely, 2^6420620602 is an apocalyptic number.

6420620602 is a deficient number, since it is larger than the sum of its proper divisors (4323348998).

6420620602 is a wasteful number, since it uses less digits than its factorization.

6420620602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27582.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 6420620602 is about 80128.7751185553. The cubic root of 6420620602 is about 1858.6274031432.

Adding to 6420620602 its reverse (2060260246), we get a palindrome (8480880848).

The spelling of 6420620602 in words is "six billion, four hundred twenty million, six hundred twenty thousand, six hundred two".