67381701813 has 6 divisors (see below), whose sum is σ = 97329124854. Its totient is φ = 44921134536.

The previous prime is 67381701767. The next prime is 67381701833. The reversal of 67381701813 is 31810718376.

67381701813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 67162868964 + 218832849 = 259158^2 + 14793^2 .

It is not a de Polignac number, because 67381701813 - 2¹⁴ = 67381685429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67381701833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3743427870 + ... + 3743427887.

It is an arithmetic number, because the mean of its divisors is an integer number (16221520809).

Almost surely, 2^67381701813 is an apocalyptic number.

It is an amenable number.

67381701813 is a deficient number, since it is larger than the sum of its proper divisors (29947423041).

67381701813 is a wasteful number, since it uses less digits than its factorization.

67381701813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7486855763 (or 7486855760 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 67381701813 in words is "sixty-seven billion, three hundred eighty-one million, seven hundred one thousand, eight hundred thirteen".