6421204627 has 16 divisors (see below), whose sum is σ = 6779922912. Its totient is φ = 6073332480.

The previous prime is 6421204597. The next prime is 6421204633. The reversal of 6421204627 is 7264021246.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6421204627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6421204592 and 6421204601.

It is not an unprimeable number, because it can be changed into a prime (6421204637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421833 + ... + 436789.

It is an arithmetic number, because the mean of its divisors is an integer number (423745182).

Almost surely, 2^6421204627 is an apocalyptic number.

6421204627 is a deficient number, since it is larger than the sum of its proper divisors (358718285).

6421204627 is a wasteful number, since it uses less digits than its factorization.

6421204627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15318.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 6421204627 is about 80132.4193257635. The cubic root of 6421204627 is about 1858.6837555337.

The spelling of 6421204627 in words is "six billion, four hundred twenty-one million, two hundred four thousand, six hundred twenty-seven".