6484620851 has 16 divisors (see below), whose sum is σ = 6955032384. Its totient is φ = 6030186624.

The previous prime is 6484620787. The next prime is 6484620853. The reversal of 6484620851 is 1580264846.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6484620851 - 2⁶ = 6484620787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6484620853) 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, 1472585 + ... + 1476981.

It is an arithmetic number, because the mean of its divisors is an integer number (434689524).

Almost surely, 2^6484620851 is an apocalyptic number.

6484620851 is a deficient number, since it is larger than the sum of its proper divisors (470411533).

6484620851 is a wasteful number, since it uses less digits than its factorization.

6484620851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190.

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 6484620851 is about 80527.1435666260. The cubic root of 6484620851 is about 1864.7825482297.

The spelling of 6484620851 in words is "six billion, four hundred eighty-four million, six hundred twenty thousand, eight hundred fifty-one".