67278737941 has 4 divisors (see below), whose sum is σ = 67279832172. Its totient is φ = 67277643712.

The previous prime is 67278737881. The next prime is 67278737951. The reversal of 67278737941 is 14973787276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16732457316 + 50546280625 = 129354^2 + 224825^2 .

It is a cyclic number.

It is not a de Polignac number, because 67278737941 - 2²⁷ = 67144520213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67278737941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67278737951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449026 + ... + 579811.

It is an arithmetic number, because the mean of its divisors is an integer number (16819958043).

Almost surely, 2^67278737941 is an apocalyptic number.

It is an amenable number.

67278737941 is a deficient number, since it is larger than the sum of its proper divisors (1094231).

67278737941 is a wasteful number, since it uses less digits than its factorization.

67278737941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094230.

The product of its digits is 24893568, while the sum is 61.

The spelling of 67278737941 in words is "sixty-seven billion, two hundred seventy-eight million, seven hundred thirty-seven thousand, nine hundred forty-one".