67738970871 has 56 divisors (see below), whose sum is σ = 119317773456. Its totient is φ = 37895869440.

The previous prime is 67738970869. The next prime is 67738970903. The reversal of 67738970871 is 17807983776.

It is not a de Polignac number, because 67738970871 - 2¹ = 67738970869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67738970799 and 67738970808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67738978871) 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 55 ways as a sum of consecutive naturals, for example, 220650 + ... + 429143.

It is an arithmetic number, because the mean of its divisors is an integer number (2130674526).

Almost surely, 2^67738970871 is an apocalyptic number.

67738970871 is a deficient number, since it is larger than the sum of its proper divisors (51578802585).

67738970871 is a wasteful number, since it uses less digits than its factorization.

67738970871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649835 (or 649820 counting only the distinct ones).

The product of its (nonzero) digits is 24893568, while the sum is 63.

The spelling of 67738970871 in words is "sixty-seven billion, seven hundred thirty-eight million, nine hundred seventy thousand, eight hundred seventy-one".