402728685166 has 8 divisors (see below), whose sum is σ = 613109341800. Its totient is φ = 198358904568.

The previous prime is 402728685089. The next prime is 402728685167. The reversal of 402728685166 is 661586827204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402728685167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1502718841 + ... + 1502719108.

It is an arithmetic number, because the mean of its divisors is an integer number (76638667725).

Almost surely, 2^402728685166 is an apocalyptic number.

402728685166 is a deficient number, since it is larger than the sum of its proper divisors (210380656634).

402728685166 is a wasteful number, since it uses less digits than its factorization.

402728685166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005438018.

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 402728685166 in words is "four hundred two billion, seven hundred twenty-eight million, six hundred eighty-five thousand, one hundred sixty-six".