6427525271437 has 2 divisors, whose sum is σ = 6427525271438. Its totient is φ = 6427525271436.

The previous prime is 6427525271423. The next prime is 6427525271507. The reversal of 6427525271437 is 7341725257246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6163992942121 + 263532329316 = 2482739^2 + 513354^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6427525271437 is a prime.

It is a super-2 number, since 2×6427525271437² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6427525272437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213762635718 + 3213762635719.

It is an arithmetic number, because the mean of its divisors is an integer number (3213762635719).

Almost surely, 2^{6427525271437} is an apocalyptic number.

It is an amenable number.

6427525271437 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427525271437 is an equidigital number, since it uses as much as digits as its factorization.

6427525271437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19756800, while the sum is 55.

The spelling of 6427525271437 in words is "six trillion, four hundred twenty-seven billion, five hundred twenty-five million, two hundred seventy-one thousand, four hundred thirty-seven".