28306845054 has 36 divisors (see below), whose sum is σ = 63373792248. Its totient is φ = 9131234760.

The previous prime is 28306844999. The next prime is 28306845067. The reversal of 28306845054 is 45054860382.

28306845054 is a `hidden beast` number, since 2 + 83 + 0 + 68 + 4 + 505 + 4 = 666.

It is a super-2 number, since 2×28306845054² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 800914 + ... + 835509.

It is an arithmetic number, because the mean of its divisors is an integer number (1760383118).

Almost surely, 2^28306845054 is an apocalyptic number.

28306845054 is an abundant number, since it is smaller than the sum of its proper divisors (35066947194).

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

28306845054 is a wasteful number, since it uses less digits than its factorization.

28306845054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636493 (or 1636459 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 28306845054 in words is "twenty-eight billion, three hundred six million, eight hundred forty-five thousand, fifty-four".