28842975992611 has 4 divisors (see below), whose sum is σ = 31465064719224. Its totient is φ = 26220887266000.

The previous prime is 28842975992599. The next prime is 28842975992681. The reversal of 28842975992611 is 11629957924882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28842975992611 - 2²⁷ = 28842841774883 is a prime.

It is a super-2 number, since 2×28842975992611² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28842975992681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311044363290 + ... + 1311044363311.

It is an arithmetic number, because the mean of its divisors is an integer number (7866266179806).

Almost surely, 2^{28842975992611} is an apocalyptic number.

28842975992611 is a deficient number, since it is larger than the sum of its proper divisors (2622088726613).

28842975992611 is a wasteful number, since it uses less digits than its factorization.

28842975992611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622088726612.

The product of its digits is 313528320, while the sum is 73.

The spelling of 28842975992611 in words is "twenty-eight trillion, eight hundred forty-two billion, nine hundred seventy-five million, nine hundred ninety-two thousand, six hundred eleven".