67349638624 has 12 divisors (see below), whose sum is σ = 132594601104. Its totient is φ = 33674819296.

The previous prime is 67349638579. The next prime is 67349638627. The reversal of 67349638624 is 42683694376.

It is a happy number.

It is a super-2 number, since 2×67349638624² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67349638627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052338072 + ... + 1052338135.

It is an arithmetic number, because the mean of its divisors is an integer number (11049550092).

Almost surely, 2^67349638624 is an apocalyptic number.

It is an amenable number.

67349638624 is a deficient number, since it is larger than the sum of its proper divisors (65244962480).

67349638624 is a wasteful number, since it uses less digits than its factorization.

67349638624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104676217 (or 2104676209 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 58.

The spelling of 67349638624 in words is "sixty-seven billion, three hundred forty-nine million, six hundred thirty-eight thousand, six hundred twenty-four".