6413726537 has 2 divisors, whose sum is σ = 6413726538. Its totient is φ = 6413726536.

The previous prime is 6413726521. The next prime is 6413726569. The reversal of 6413726537 is 7356273146.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4508316736 + 1905409801 = 67144^2 + 43651^2 .

It is a cyclic number.

It is not a de Polignac number, because 6413726537 - 2⁴ = 6413726521 is a prime.

It is a super-2 number, since 2×6413726537² = 82271776182836024738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6413726237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3206863268 + 3206863269.

It is an arithmetic number, because the mean of its divisors is an integer number (3206863269).

Almost surely, 2^6413726537 is an apocalyptic number.

It is an amenable number.

6413726537 is a deficient number, since it is larger than the sum of its proper divisors (1).

6413726537 is an equidigital number, since it uses as much as digits as its factorization.

6413726537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 44.

The square root of 6413726537 is about 80085.7449050703. The cubic root of 6413726537 is about 1857.9619385527.

The spelling of 6413726537 in words is "six billion, four hundred thirteen million, seven hundred twenty-six thousand, five hundred thirty-seven".