6422642957 has 2 divisors, whose sum is σ = 6422642958. Its totient is φ = 6422642956.

The previous prime is 6422642923. The next prime is 6422642987. The reversal of 6422642957 is 7592462246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5087398276 + 1335244681 = 71326^2 + 36541^2 .

It is a cyclic number.

It is not a de Polignac number, because 6422642957 - 2⁶ = 6422642893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6422642987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211321478 + 3211321479.

It is an arithmetic number, because the mean of its divisors is an integer number (3211321479).

Almost surely, 2^6422642957 is an apocalyptic number.

It is an amenable number.

6422642957 is a deficient number, since it is larger than the sum of its proper divisors (1).

6422642957 is an equidigital number, since it uses as much as digits as its factorization.

6422642957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 47.

The square root of 6422642957 is about 80141.3935304347. The cubic root of 6422642957 is about 1858.8225249794.

The spelling of 6422642957 in words is "six billion, four hundred twenty-two million, six hundred forty-two thousand, nine hundred fifty-seven".