28385520046 has 16 divisors (see below), whose sum is σ = 45875466000. Its totient is φ = 13094742528.

The previous prime is 28385520043. The next prime is 28385520067. The reversal of 28385520046 is 64002558382.

It is a junction number, because it is equal to n+sod(n) for n = 28385519984 and 28385520011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28385520043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205491 + ... + 314638.

It is an arithmetic number, because the mean of its divisors is an integer number (2867216625).

Almost surely, 2^28385520046 is an apocalyptic number.

28385520046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28385520046 is a deficient number, since it is larger than the sum of its proper divisors (17489945954).

28385520046 is a wasteful number, since it uses less digits than its factorization.

28385520046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522243.

The product of its (nonzero) digits is 460800, while the sum is 43.

The spelling of 28385520046 in words is "twenty-eight billion, three hundred eighty-five million, five hundred twenty thousand, forty-six".