671080068135 has 12 divisors (see below), whose sum is σ = 1163205451512. Its totient is φ = 357909369648.

The previous prime is 671080068133. The next prime is 671080068199. The reversal of 671080068135 is 531860080176.

It is not a de Polignac number, because 671080068135 - 2¹ = 671080068133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 14912890403 = 671080068135 / (6 + 7 + 1 + 0 + 8 + 0 + 0 + 6 + 8 + 1 + 3 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671080068133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7456445157 + ... + 7456445246.

It is an arithmetic number, because the mean of its divisors is an integer number (96933787626).

Almost surely, 2^671080068135 is an apocalyptic number.

671080068135 is a deficient number, since it is larger than the sum of its proper divisors (492125383377).

671080068135 is a wasteful number, since it uses less digits than its factorization.

671080068135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14912890414 (or 14912890411 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 671080068135 in words is "six hundred seventy-one billion, eighty million, sixty-eight thousand, one hundred thirty-five".