28690899082 has 8 divisors (see below), whose sum is σ = 45567898596. Its totient is φ = 13501599552.

The previous prime is 28690899049. The next prime is 28690899091. The reversal of 28690899082 is 28099809682.

It can be written as a sum of positive squares in 2 ways, for example, as 25940001481 + 2750897601 = 161059^2 + 52449^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 28690899082.

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, 421924953 + ... + 421925020.

Almost surely, 2^28690899082 is an apocalyptic number.

28690899082 is a deficient number, since it is larger than the sum of its proper divisors (16876999514).

28690899082 is a wasteful number, since it uses less digits than its factorization.

28690899082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843849992.

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 28690899082 in words is "twenty-eight billion, six hundred ninety million, eight hundred ninety-nine thousand, eighty-two".