67345678390 has 16 divisors (see below), whose sum is σ = 124498498032. Its totient is φ = 26210209824.

The previous prime is 67345678357. The next prime is 67345678403. The reversal of 67345678390 is 9387654376.

67345678390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91007304 + ... + 91008043.

It is an arithmetic number, because the mean of its divisors is an integer number (7781156127).

Almost surely, 2^67345678390 is an apocalyptic number.

67345678390 is a deficient number, since it is larger than the sum of its proper divisors (57152819642).

67345678390 is a wasteful number, since it uses less digits than its factorization.

67345678390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182015391.

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 67345678390 in words is "sixty-seven billion, three hundred forty-five million, six hundred seventy-eight thousand, three hundred ninety".