6781490060171 has 2 divisors, whose sum is σ = 6781490060172. Its totient is φ = 6781490060170.

The previous prime is 6781490060159. The next prime is 6781490060207. The reversal of 6781490060171 is 1710600941876.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6781490060171 is a prime.

It is not a weakly prime, because it can be changed into another prime (6781490060131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3390745030085 + 3390745030086.

It is an arithmetic number, because the mean of its divisors is an integer number (3390745030086).

Almost surely, 2^{6781490060171} is an apocalyptic number.

6781490060171 is a deficient number, since it is larger than the sum of its proper divisors (1).

6781490060171 is an equidigital number, since it uses as much as digits as its factorization.

6781490060171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 6781490060171 in words is "six trillion, seven hundred eighty-one billion, four hundred ninety million, sixty thousand, one hundred seventy-one".