28245880401 has 8 divisors (see below), whose sum is σ = 38679043584. Its totient is φ = 18321652080.

The previous prime is 28245880387. The next prime is 28245880417. The reversal of 28245880401 is 10408854282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28245880401 - 2²⁵ = 28212325969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28245880441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127233585 + ... + 127233806.

It is an arithmetic number, because the mean of its divisors is an integer number (4834880448).

Almost surely, 2^28245880401 is an apocalyptic number.

It is an amenable number.

28245880401 is a deficient number, since it is larger than the sum of its proper divisors (10433163183).

28245880401 is a wasteful number, since it uses less digits than its factorization.

28245880401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254467431.

The product of its (nonzero) digits is 163840, while the sum is 42.

The spelling of 28245880401 in words is "twenty-eight billion, two hundred forty-five million, eight hundred eighty thousand, four hundred one".