28073393953 has 16 divisors (see below), whose sum is σ = 31264873920. Its totient is φ = 24992164800.

The previous prime is 28073393947. The next prime is 28073393963. The reversal of 28073393953 is 35939337082.

It is a cyclic number.

It is not a de Polignac number, because 28073393953 - 2²⁵ = 28039839521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28073393953.

It is not an unprimeable number, because it can be changed into a prime (28073393903) 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 15 ways as a sum of consecutive naturals, for example, 60163 + ... + 244471.

It is an arithmetic number, because the mean of its divisors is an integer number (1954054620).

Almost surely, 2^28073393953 is an apocalyptic number.

It is an amenable number.

28073393953 is a deficient number, since it is larger than the sum of its proper divisors (3191479967).

28073393953 is a wasteful number, since it uses less digits than its factorization.

28073393953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184608.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The spelling of 28073393953 in words is "twenty-eight billion, seventy-three million, three hundred ninety-three thousand, nine hundred fifty-three".