67729346458 has 8 divisors (see below), whose sum is σ = 101668342752. Its totient is φ = 33839898876.

The previous prime is 67729346431. The next prime is 67729346467. The reversal of 67729346458 is 85464392776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 67729346396 and 67729346405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12383760 + ... + 12389227.

It is an arithmetic number, because the mean of its divisors is an integer number (12708542844).

Almost surely, 2^67729346458 is an apocalyptic number.

67729346458 is a deficient number, since it is larger than the sum of its proper divisors (33938996294).

67729346458 is a wasteful number, since it uses less digits than its factorization.

67729346458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24774356.

The product of its digits is 60963840, while the sum is 61.

The spelling of 67729346458 in words is "sixty-seven billion, seven hundred twenty-nine million, three hundred forty-six thousand, four hundred fifty-eight".