67845141841 has 9 divisors (see below), whose sum is σ = 71609098971. Its totient is φ = 64269656424.

The previous prime is 67845141829. The next prime is 67845141863. The reversal of 67845141841 is 14814154876.

The square root of 67845141841 is 260471.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 58602242241 + 9242899600 = 242079^2 + 96140^2 .

It is not a de Polignac number, because 67845141841 - 2¹³ = 67845133649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67245141841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4942095 + ... + 4955803.

Almost surely, 2^67845141841 is an apocalyptic number.

67845141841 is the 260471-st square number.

67845141841 is the 130236-th centered octagonal number.

It is an amenable number.

67845141841 is a deficient number, since it is larger than the sum of its proper divisors (3763957130).

67845141841 is an frugal number, since it uses more digits than its factorization.

67845141841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27456 (or 13728 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

Multiplying 67845141841 by its sum of digits (49), we get a square (3324411950209 = 1823297²).

The spelling of 67845141841 in words is "sixty-seven billion, eight hundred forty-five million, one hundred forty-one thousand, eight hundred forty-one".