67381012 has 6 divisors (see below), whose sum is σ = 117916778. Its totient is φ = 33690504.

The previous prime is 67380991. The next prime is 67381019. The reversal of 67381012 is 21018376.

It can be written as a sum of positive squares in only one way, i.e., 64545156 + 2835856 = 8034^2 + 1684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67381019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8422623 + ... + 8422630.

Almost surely, 2^67381012 is an apocalyptic number.

It is an amenable number.

67381012 is a deficient number, since it is larger than the sum of its proper divisors (50535766).

67381012 is a wasteful number, since it uses less digits than its factorization.

67381012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16845257 (or 16845255 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 67381012 is about 8208.5937894380. The cubic root of 67381012 is about 406.9232550131.

Adding to 67381012 its reverse (21018376), we get a palindrome (88399388).

It can be divided in two parts, 6738 and 1012, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 67381012 in words is "sixty-seven million, three hundred eighty-one thousand, twelve".