6481474397 has 2 divisors, whose sum is σ = 6481474398. Its totient is φ = 6481474396.

The previous prime is 6481474387. The next prime is 6481474403. The reversal of 6481474397 is 7934741846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5826421561 + 655052836 = 76331^2 + 25594^2 .

It is a cyclic number.

It is not a de Polignac number, because 6481474397 - 2⁶ = 6481474333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6481474387) 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, 3240737198 + 3240737199.

It is an arithmetic number, because the mean of its divisors is an integer number (3240737199).

Almost surely, 2^6481474397 is an apocalyptic number.

It is an amenable number.

6481474397 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481474397 is an equidigital number, since it uses as much as digits as its factorization.

6481474397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 53.

The square root of 6481474397 is about 80507.6045911192. The cubic root of 6481474397 is about 1864.4808908213.

The spelling of 6481474397 in words is "six billion, four hundred eighty-one million, four hundred seventy-four thousand, three hundred ninety-seven".