67434425378 has 16 divisors (see below), whose sum is σ = 102530171520. Its totient is φ = 33260166000.

The previous prime is 67434425293. The next prime is 67434425407. The reversal of 67434425378 is 87352443476.

It is a happy number.

It is a super-2 number, since 2×67434425378² (a number of 22 digits) contains 22 as substring.

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, 561188 + ... + 670671.

It is an arithmetic number, because the mean of its divisors is an integer number (6408135720).

Almost surely, 2^67434425378 is an apocalyptic number.

67434425378 is a deficient number, since it is larger than the sum of its proper divisors (35095746142).

67434425378 is a wasteful number, since it uses less digits than its factorization.

67434425378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232233.

The product of its digits is 13547520, while the sum is 53.

The spelling of 67434425378 in words is "sixty-seven billion, four hundred thirty-four million, four hundred twenty-five thousand, three hundred seventy-eight".