67849350728 has 16 divisors (see below), whose sum is σ = 127262960880. Its totient is φ = 33912561168.

The previous prime is 67849350727. The next prime is 67849350757. The reversal of 67849350728 is 82705394876.

It is a happy number.

67849350728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67849350728² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67849350727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1490450 + ... + 1535297.

It is an arithmetic number, because the mean of its divisors is an integer number (7953935055).

Almost surely, 2^67849350728 is an apocalyptic number.

It is an amenable number.

67849350728 is a deficient number, since it is larger than the sum of its proper divisors (59413610152).

67849350728 is a wasteful number, since it uses less digits than its factorization.

67849350728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028556 (or 3028552 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 67849350728 in words is "sixty-seven billion, eight hundred forty-nine million, three hundred fifty thousand, seven hundred twenty-eight".