6420807101 has 8 divisors (see below), whose sum is σ = 6590665440. Its totient is φ = 6252983248.

The previous prime is 6420807097. The next prime is 6420807103. The reversal of 6420807101 is 1017080246.

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 6420807101 - 2² = 6420807097 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 (6420807103) 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, 502226 + ... + 514851.

It is an arithmetic number, because the mean of its divisors is an integer number (823833180).

Almost surely, 2^6420807101 is an apocalyptic number.

It is an amenable number.

6420807101 is a deficient number, since it is larger than the sum of its proper divisors (169858339).

6420807101 is a wasteful number, since it uses less digits than its factorization.

6420807101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017243.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 6420807101 is about 80129.9388555863. The cubic root of 6420807101 is about 1858.6453987450.

Adding to 6420807101 its reverse (1017080246), we get a palindrome (7437887347).

The spelling of 6420807101 in words is "six billion, four hundred twenty million, eight hundred seven thousand, one hundred one".