6471072261481 has 2 divisors, whose sum is σ = 6471072261482. Its totient is φ = 6471072261480.

The previous prime is 6471072261443. The next prime is 6471072261553. The reversal of 6471072261481 is 1841622701746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5318650688400 + 1152421573081 = 2306220^2 + 1073509^2 .

It is a cyclic number.

It is not a de Polignac number, because 6471072261481 - 2⁹ = 6471072260969 is a prime.

It is a super-2 number, since 2×6471072261481² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6471072267481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235536130740 + 3235536130741.

It is an arithmetic number, because the mean of its divisors is an integer number (3235536130741).

Almost surely, 2^{6471072261481} is an apocalyptic number.

It is an amenable number.

6471072261481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6471072261481 is an equidigital number, since it uses as much as digits as its factorization.

6471072261481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 6471072261481 in words is "six trillion, four hundred seventy-one billion, seventy-two million, two hundred sixty-one thousand, four hundred eighty-one".