6420651353 has 8 divisors (see below), whose sum is σ = 6441464736. Its totient is φ = 6399870400.

The previous prime is 6420651331. The next prime is 6420651371. The reversal of 6420651353 is 3531560246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6420651353 - 2¹⁶ = 6420585817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6420651313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425150 + ... + 439992.

It is an arithmetic number, because the mean of its divisors is an integer number (805183092).

Almost surely, 2^6420651353 is an apocalyptic number.

It is an amenable number.

6420651353 is a deficient number, since it is larger than the sum of its proper divisors (20813383).

6420651353 is a wasteful number, since it uses less digits than its factorization.

6420651353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16215.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 6420651353 is about 80128.9670032005. The cubic root of 6420651353 is about 1858.6303703828.

The spelling of 6420651353 in words is "six billion, four hundred twenty million, six hundred fifty-one thousand, three hundred fifty-three".