67126312464 has 40 divisors (see below), whose sum is σ = 173573212032. Its totient is φ = 22354331520.

The previous prime is 67126312459. The next prime is 67126312507. The reversal of 67126312464 is 46421362176.

It is a happy 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, 608104 + ... + 709959.

Almost surely, 2^67126312464 is an apocalyptic number.

It is an amenable number.

67126312464 is an abundant number, since it is smaller than the sum of its proper divisors (106446899568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67126312464 is a wasteful number, since it uses less digits than its factorization.

67126312464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319135 (or 1319129 counting only the distinct ones).

The product of its digits is 290304, while the sum is 42.

The spelling of 67126312464 in words is "sixty-seven billion, one hundred twenty-six million, three hundred twelve thousand, four hundred sixty-four".