28055580030830 has 32 divisors (see below), whose sum is σ = 55163350163808. Its totient is φ = 10188622988800.

The previous prime is 28055580030823. The next prime is 28055580030847. The reversal of 28055580030830 is 3803008555082.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167492327 + ... + 167659746.

It is an arithmetic number, because the mean of its divisors is an integer number (1723854692619).

Almost surely, 2^{28055580030830} is an apocalyptic number.

28055580030830 is a deficient number, since it is larger than the sum of its proper divisors (27107770132978).

28055580030830 is a wasteful number, since it uses less digits than its factorization.

28055580030830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335152852.

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 28055580030830 in words is "twenty-eight trillion, fifty-five billion, five hundred eighty million, thirty thousand, eight hundred thirty".