67345678389 has 16 divisors (see below), whose sum is σ = 97984502784. Its totient is φ = 40804249200.

The previous prime is 67345678357. The next prime is 67345678403. The reversal of 67345678389 is 98387654376.

67345678389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67345678389 - 2⁵ = 67345678357 is a prime.

It is a super-3 number, since 3×67345678389³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67345678289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161199 + ... + 400844.

It is an arithmetic number, because the mean of its divisors is an integer number (6124031424).

Almost surely, 2^67345678389 is an apocalyptic number.

It is an amenable number.

67345678389 is a deficient number, since it is larger than the sum of its proper divisors (30638824395).

67345678389 is a wasteful number, since it uses less digits than its factorization.

67345678389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565688.

The product of its digits is 182891520, while the sum is 66.

The spelling of 67345678389 in words is "sixty-seven billion, three hundred forty-five million, six hundred seventy-eight thousand, three hundred eighty-nine".