28824626461 has 4 divisors (see below), whose sum is σ = 28866830112. Its totient is φ = 28782422812.

The previous prime is 28824626459. The next prime is 28824626489. The reversal of 28824626461 is 16462642882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28824626461 - 2¹ = 28824626459 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824626401) 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, 21100801 + ... + 21102166.

It is an arithmetic number, because the mean of its divisors is an integer number (7216707528).

Almost surely, 2^28824626461 is an apocalyptic number.

It is an amenable number.

28824626461 is a deficient number, since it is larger than the sum of its proper divisors (42203651).

28824626461 is an equidigital number, since it uses as much as digits as its factorization.

28824626461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42203650.

The product of its digits is 1769472, while the sum is 49.

The spelling of 28824626461 in words is "twenty-eight billion, eight hundred twenty-four million, six hundred twenty-six thousand, four hundred sixty-one".