67716740528 has 10 divisors (see below), whose sum is σ = 131201184804. Its totient is φ = 33858370256.

The previous prime is 67716740521. The next prime is 67716740569. The reversal of 67716740528 is 82504761776.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67716740528.

It is not an unprimeable number, because it can be changed into a prime (67716740521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2116148126 + ... + 2116148157.

Almost surely, 2^67716740528 is an apocalyptic number.

It is an amenable number.

67716740528 is a deficient number, since it is larger than the sum of its proper divisors (63484444276).

67716740528 is a wasteful number, since it uses less digits than its factorization.

67716740528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4232296291 (or 4232296285 counting only the distinct ones).

The product of its (nonzero) digits is 3951360, while the sum is 53.

The spelling of 67716740528 in words is "sixty-seven billion, seven hundred sixteen million, seven hundred forty thousand, five hundred twenty-eight".