28364557513 has 8 divisors (see below), whose sum is σ = 29599498368. Its totient is φ = 27129758304.

The previous prime is 28364557489. The next prime is 28364557541. The reversal of 28364557513 is 31575546382.

It is a happy number.

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 28364557513 - 2¹³ = 28364549321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28364557583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691620 + ... + 731482.

It is an arithmetic number, because the mean of its divisors is an integer number (3699937296).

Almost surely, 2^28364557513 is an apocalyptic number.

28364557513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28364557513 is a deficient number, since it is larger than the sum of its proper divisors (1234940855).

28364557513 is a wasteful number, since it uses less digits than its factorization.

28364557513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70823.

The product of its digits is 3024000, while the sum is 49.

The spelling of 28364557513 in words is "twenty-eight billion, three hundred sixty-four million, five hundred fifty-seven thousand, five hundred thirteen".