28788383011 has 8 divisors (see below), whose sum is σ = 28838789120. Its totient is φ = 28738023048.

The previous prime is 28788382999. The next prime is 28788383017. The reversal of 28788383011 is 11038388782.

It is a happy number.

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 28788383011 - 2⁹ = 28788382499 is a prime.

It is a super-2 number, since 2×28788383011² (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 (28788383017) 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, 1379920 + ... + 1400626.

It is an arithmetic number, because the mean of its divisors is an integer number (3604848640).

Almost surely, 2^28788383011 is an apocalyptic number.

28788383011 is a deficient number, since it is larger than the sum of its proper divisors (50406109).

28788383011 is a wasteful number, since it uses less digits than its factorization.

28788383011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23073.

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 28788383011 in words is "twenty-eight billion, seven hundred eighty-eight million, three hundred eighty-three thousand, eleven".