6335546981 has 2 divisors, whose sum is σ = 6335546982. Its totient is φ = 6335546980.

The previous prime is 6335546957. The next prime is 6335547083. The reversal of 6335546981 is 1896455336.

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., 4909804900 + 1425742081 = 70070^2 + 37759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6335546981 is a prime.

It is a super-2 number, since 2×6335546981² = 80278311096916428722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6335546951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3167773490 + 3167773491.

It is an arithmetic number, because the mean of its divisors is an integer number (3167773491).

Almost surely, 2^6335546981 is an apocalyptic number.

It is an amenable number.

6335546981 is a deficient number, since it is larger than the sum of its proper divisors (1).

6335546981 is an equidigital number, since it uses as much as digits as its factorization.

6335546981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 50.

The square root of 6335546981 is about 79596.1492850000. The cubic root of 6335546981 is about 1850.3819012890.

The spelling of 6335546981 in words is "six billion, three hundred thirty-five million, five hundred forty-six thousand, nine hundred eighty-one".