67653738768 has 120 divisors (see below), whose sum is σ = 219548628544. Its totient is φ = 17572389120.

The previous prime is 67653738751. The next prime is 67653738787. The reversal of 67653738768 is 86783735676.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 67653738699 and 67653738708.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 791371 + ... + 872682.

Almost surely, 2^67653738768 is an apocalyptic number.

It is an amenable number.

67653738768 is an abundant number, since it is smaller than the sum of its proper divisors (151894889776).

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

67653738768 is a wasteful number, since it uses less digits than its factorization.

67653738768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664093 (or 1664076 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 66.

The spelling of 67653738768 in words is "sixty-seven billion, six hundred fifty-three million, seven hundred thirty-eight thousand, seven hundred sixty-eight".