28345814502 has 8 divisors (see below), whose sum is σ = 56691629016. Its totient is φ = 9448604832.

The previous prime is 28345814459. The next prime is 28345814531. The reversal of 28345814502 is 20541854382.

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

28345814502 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 2362151203 + ... + 2362151214.

It is an arithmetic number, because the mean of its divisors is an integer number (7086453627).

Almost surely, 2^28345814502 is an apocalyptic number.

28345814502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28345814502 is a wasteful number, since it uses less digits than its factorization.

28345814502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724302422.

The product of its (nonzero) digits is 307200, while the sum is 42.

The spelling of 28345814502 in words is "twenty-eight billion, three hundred forty-five million, eight hundred fourteen thousand, five hundred two".