28423645654 has 16 divisors (see below), whose sum is σ = 43400836800. Its totient is φ = 13957174984.

The previous prime is 28423645553. The next prime is 28423645673. The reversal of 28423645654 is 45654632482.

28423645654 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 28423645598 and 28423645607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049 + ... + 238435.

It is an arithmetic number, because the mean of its divisors is an integer number (2712552300).

Almost surely, 2^28423645654 is an apocalyptic number.

28423645654 is a deficient number, since it is larger than the sum of its proper divisors (14977191146).

28423645654 is a wasteful number, since it uses less digits than its factorization.

28423645654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237467.

The product of its digits is 5529600, while the sum is 49.

The spelling of 28423645654 in words is "twenty-eight billion, four hundred twenty-three million, six hundred forty-five thousand, six hundred fifty-four".