28863972574 has 4 divisors (see below), whose sum is σ = 43295958864. Its totient is φ = 14431986286.

The previous prime is 28863972523. The next prime is 28863972589. The reversal of 28863972574 is 47527936882.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 7215993142 + ... + 7215993145.

It is an arithmetic number, because the mean of its divisors is an integer number (10823989716).

Almost surely, 2^28863972574 is an apocalyptic number.

28863972574 is a deficient number, since it is larger than the sum of its proper divisors (14431986290).

28863972574 is a wasteful number, since it uses less digits than its factorization.

28863972574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14431986289.

The product of its digits is 40642560, while the sum is 61.

The spelling of 28863972574 in words is "twenty-eight billion, eight hundred sixty-three million, nine hundred seventy-two thousand, five hundred seventy-four".