138571825176671 has 2 divisors, whose sum is σ = 138571825176672. Its totient is φ = 138571825176670.

The previous prime is 138571825176649. The next prime is 138571825176791. The reversal of 138571825176671 is 176671528175831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138571825176671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138571825176611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69285912588335 + 69285912588336.

It is an arithmetic number, because the mean of its divisors is an integer number (69285912588336).

Almost surely, 2^{138571825176671} is an apocalyptic number.

138571825176671 is a deficient number, since it is larger than the sum of its proper divisors (1).

138571825176671 is an equidigital number, since it uses as much as digits as its factorization.

138571825176671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 118540800, while the sum is 68.

The spelling of 138571825176671 in words is "one hundred thirty-eight trillion, five hundred seventy-one billion, eight hundred twenty-five million, one hundred seventy-six thousand, six hundred seventy-one".