28628862017 has 16 divisors (see below), whose sum is σ = 32799818880. Its totient is φ = 24478267392.

The previous prime is 28628861957. The next prime is 28628862037. The reversal of 28628862017 is 71026882682.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 28628862017 - 2⁶ = 28628861953 is a prime.

It is a super-2 number, since 2×28628862017² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28628862037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5719838 + ... + 5724840.

It is an arithmetic number, because the mean of its divisors is an integer number (2049988680).

Almost surely, 2^28628862017 is an apocalyptic number.

It is an amenable number.

28628862017 is a deficient number, since it is larger than the sum of its proper divisors (4170956863).

28628862017 is a wasteful number, since it uses less digits than its factorization.

28628862017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6872.

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 28628862017 in words is "twenty-eight billion, six hundred twenty-eight million, eight hundred sixty-two thousand, seventeen".