67616253708613 has 4 divisors (see below), whose sum is σ = 69443720025100. Its totient is φ = 65788787392128.

The previous prime is 67616253708607. The next prime is 67616253708623. The reversal of 67616253708613 is 31680735261676.

67616253708613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43968330863044 + 23647922845569 = 6630862^2 + 4862913^2 .

It is a cyclic number.

It is not a de Polignac number, because 67616253708613 - 2²⁹ = 67615716837701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67616253708623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913733158188 + ... + 913733158261.

It is an arithmetic number, because the mean of its divisors is an integer number (17360930006275).

Almost surely, 2^{67616253708613} is an apocalyptic number.

It is an amenable number.

67616253708613 is a deficient number, since it is larger than the sum of its proper divisors (1827466316487).

67616253708613 is a wasteful number, since it uses less digits than its factorization.

67616253708613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827466316486.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 67616253708613 in words is "sixty-seven trillion, six hundred sixteen billion, two hundred fifty-three million, seven hundred eight thousand, six hundred thirteen".