28232645455 has 8 divisors (see below), whose sum is σ = 38719056672. Its totient is φ = 19359528288.

The previous prime is 28232645453. The next prime is 28232645459. The reversal of 28232645455 is 55454623282.

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

It is a cyclic number.

It is not a de Polignac number, because 28232645455 - 2¹ = 28232645453 is a prime.

It is a super-3 number, since 3×28232645455³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28232645453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403323472 + ... + 403323541.

It is an arithmetic number, because the mean of its divisors is an integer number (4839882084).

Almost surely, 2^28232645455 is an apocalyptic number.

28232645455 is a deficient number, since it is larger than the sum of its proper divisors (10486411217).

28232645455 is an equidigital number, since it uses as much as digits as its factorization.

28232645455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806647025.

The product of its digits is 2304000, while the sum is 46.

The spelling of 28232645455 in words is "twenty-eight billion, two hundred thirty-two million, six hundred forty-five thousand, four hundred fifty-five".