28883383691 has 8 divisors (see below), whose sum is σ = 30831782400. Its totient is φ = 26977807080.

The previous prime is 28883383679. The next prime is 28883383709. The reversal of 28883383691 is 19638338882.

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 28883383691 - 2¹⁰ = 28883382667 is a prime.

It is a super-3 number, since 3×28883383691³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28883383691.

It is not an unprimeable number, because it can be changed into a prime (28883383621) 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, 10704131 + ... + 10706828.

It is an arithmetic number, because the mean of its divisors is an integer number (3853972800).

Almost surely, 2^28883383691 is an apocalyptic number.

28883383691 is a deficient number, since it is larger than the sum of its proper divisors (1948398709).

28883383691 is a wasteful number, since it uses less digits than its factorization.

28883383691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411049.

The product of its digits is 11943936, while the sum is 59.

The spelling of 28883383691 in words is "twenty-eight billion, eight hundred eighty-three million, three hundred eighty-three thousand, six hundred ninety-one".