28349573615 has 32 divisors (see below), whose sum is σ = 38444777280. Its totient is φ = 19888844800.

The previous prime is 28349573597. The next prime is 28349573621. The reversal of 28349573615 is 51637594382.

It is a happy number.

It is not a de Polignac number, because 28349573615 - 2²⁶ = 28282464751 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 130067 + ... + 271323.

It is an arithmetic number, because the mean of its divisors is an integer number (1201399290).

Almost surely, 2^28349573615 is an apocalyptic number.

28349573615 is a deficient number, since it is larger than the sum of its proper divisors (10095203665).

28349573615 is a wasteful number, since it uses less digits than its factorization.

28349573615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141403.

The product of its digits is 5443200, while the sum is 53.

The spelling of 28349573615 in words is "twenty-eight billion, three hundred forty-nine million, five hundred seventy-three thousand, six hundred fifteen".