28411917775 has 24 divisors (see below), whose sum is σ = 35509546688. Its totient is φ = 22550400000.

The previous prime is 28411917773. The next prime is 28411917797. The reversal of 28411917775 is 57771911482.

It is not a de Polignac number, because 28411917775 - 2¹ = 28411917773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28411917773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1624075 + ... + 1641475.

Almost surely, 2^28411917775 is an apocalyptic number.

28411917775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28411917775 is a deficient number, since it is larger than the sum of its proper divisors (7097628913).

28411917775 is a wasteful number, since it uses less digits than its factorization.

28411917775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17923 (or 17918 counting only the distinct ones).

The product of its digits is 987840, while the sum is 52.

The spelling of 28411917775 in words is "twenty-eight billion, four hundred eleven million, nine hundred seventeen thousand, seven hundred seventy-five".