28413235645 has 8 divisors (see below), whose sum is σ = 35890403040. Its totient is φ = 21534241680.

The previous prime is 28413235637. The next prime is 28413235649. The reversal of 28413235645 is 54653231482.

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

It is not a de Polignac number, because 28413235645 - 2³ = 28413235637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28413235649) 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, 149543251 + ... + 149543440.

It is an arithmetic number, because the mean of its divisors is an integer number (4486300380).

Almost surely, 2^28413235645 is an apocalyptic number.

It is an amenable number.

28413235645 is a deficient number, since it is larger than the sum of its proper divisors (7477167395).

28413235645 is a wasteful number, since it uses less digits than its factorization.

28413235645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299086715.

The product of its digits is 691200, while the sum is 43.

The spelling of 28413235645 in words is "twenty-eight billion, four hundred thirteen million, two hundred thirty-five thousand, six hundred forty-five".