6422706637 has 2 divisors, whose sum is σ = 6422706638. Its totient is φ = 6422706636.

The previous prime is 6422706623. The next prime is 6422706671. The reversal of 6422706637 is 7366072246.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5202881161 + 1219825476 = 72131^2 + 34926^2 .

It is a cyclic number.

It is not a de Polignac number, because 6422706637 - 2⁷ = 6422706509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6422706593 and 6422706602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6422709637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211353318 + 3211353319.

It is an arithmetic number, because the mean of its divisors is an integer number (3211353319).

Almost surely, 2^6422706637 is an apocalyptic number.

It is an amenable number.

6422706637 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422706637 is an equidigital number, since it uses as much as digits as its factorization.

6422706637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 43.

The square root of 6422706637 is about 80141.7908272582. The cubic root of 6422706637 is about 1858.8286683188.

The spelling of 6422706637 in words is "six billion, four hundred twenty-two million, seven hundred six thousand, six hundred thirty-seven".