28591555654 has 16 divisors (see below), whose sum is σ = 43444684800. Its totient is φ = 14110114824.

The previous prime is 28591555579. The next prime is 28591555669. The reversal of 28591555654 is 45655519582.

It is a junction number, because it is equal to n+sod(n) for n = 28591555595 and 28591555604.

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, 471817 + ... + 528955.

It is an arithmetic number, because the mean of its divisors is an integer number (2715292800).

Almost surely, 2^28591555654 is an apocalyptic number.

28591555654 is a deficient number, since it is larger than the sum of its proper divisors (14853129146).

28591555654 is a wasteful number, since it uses less digits than its factorization.

28591555654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60387.

The product of its digits is 10800000, while the sum is 55.

The spelling of 28591555654 in words is "twenty-eight billion, five hundred ninety-one million, five hundred fifty-five thousand, six hundred fifty-four".