67014814813 has 4 divisors (see below), whose sum is σ = 67119362748. Its totient is φ = 66910266880.

The previous prime is 67014814739. The next prime is 67014814817. The reversal of 67014814813 is 31841841076.

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 63664373124 + 3350441689 = 252318^2 + 57883^2 .

It is a cyclic number.

It is not a de Polignac number, because 67014814813 - 2²¹ = 67012717661 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 67014814813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67014814817) 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, 52273006 + ... + 52274287.

It is an arithmetic number, because the mean of its divisors is an integer number (16779840687).

Almost surely, 2^67014814813 is an apocalyptic number.

It is an amenable number.

67014814813 is a deficient number, since it is larger than the sum of its proper divisors (104547935).

67014814813 is a wasteful number, since it uses less digits than its factorization.

67014814813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104547934.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 67014814813 in words is "sixty-seven billion, fourteen million, eight hundred fourteen thousand, eight hundred thirteen".