16028706986 has 8 divisors (see below), whose sum is σ = 24872131620. Its totient is φ = 7737996448.

The previous prime is 16028706977. The next prime is 16028707001. The reversal of 16028706986 is 68960782061.

It can be written as a sum of positive squares in 2 ways, for example, as 14443472761 + 1585234225 = 120181^2 + 39815^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138178451 + ... + 138178566.

Almost surely, 2^16028706986 is an apocalyptic number.

16028706986 is a deficient number, since it is larger than the sum of its proper divisors (8843424634).

16028706986 is a wasteful number, since it uses less digits than its factorization.

16028706986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276357048.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 16028706986 in words is "sixteen billion, twenty-eight million, seven hundred six thousand, nine hundred eighty-six".