67725728999 has 8 divisors (see below), whose sum is σ = 70688343552. Its totient is φ = 64764615960.

The previous prime is 67725728963. The next prime is 67725729013. The reversal of 67725728999 is 99982752776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67725728999 - 2⁸ = 67725728743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67725728099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282707 + ... + 464084.

It is an arithmetic number, because the mean of its divisors is an integer number (8836042944).

Almost surely, 2^67725728999 is an apocalyptic number.

67725728999 is a deficient number, since it is larger than the sum of its proper divisors (2962614553).

67725728999 is a wasteful number, since it uses less digits than its factorization.

67725728999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750757.

The product of its digits is 240045120, while the sum is 71.

The spelling of 67725728999 in words is "sixty-seven billion, seven hundred twenty-five million, seven hundred twenty-eight thousand, nine hundred ninety-nine".