28623811910 has 16 divisors (see below), whose sum is σ = 51978818016. Its totient is φ = 11348201088.

The previous prime is 28623811871. The next prime is 28623811921. The reversal of 28623811910 is 1911832682.

It is a congruent number.

It is an unprimeable number.

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, 12664274 + ... + 12666533.

It is an arithmetic number, because the mean of its divisors is an integer number (3248676126).

Almost surely, 2^28623811910 is an apocalyptic number.

28623811910 is a deficient number, since it is larger than the sum of its proper divisors (23355006106).

28623811910 is a wasteful number, since it uses less digits than its factorization.

28623811910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25330927.

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 28623811910 in words is "twenty-eight billion, six hundred twenty-three million, eight hundred eleven thousand, nine hundred ten".