28400225411 has 4 divisors (see below), whose sum is σ = 28547377032. Its totient is φ = 28253073792.

The previous prime is 28400225341. The next prime is 28400225429. The reversal of 28400225411 is 11452200482.

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 28400225411 - 2²⁶ = 28333116547 is a prime.

It is a super-2 number, since 2×28400225411² (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 (28400225431) 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, 73575521 + ... + 73575906.

It is an arithmetic number, because the mean of its divisors is an integer number (7136844258).

Almost surely, 2^28400225411 is an apocalyptic number.

28400225411 is a deficient number, since it is larger than the sum of its proper divisors (147151621).

28400225411 is a wasteful number, since it uses less digits than its factorization.

28400225411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147151620.

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 28400225411 its reverse (11452200482), we get a palindrome (39852425893).

The spelling of 28400225411 in words is "twenty-eight billion, four hundred million, two hundred twenty-five thousand, four hundred eleven".