28646630105534 has 16 divisors (see below), whose sum is σ = 50692654196736. Its totient is φ = 11881090827000.

The previous prime is 28646630105531. The next prime is 28646630105539. The reversal of 28646630105534 is 43550103664682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28646630105531) 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, 33003029642 + ... + 33003030509.

It is an arithmetic number, because the mean of its divisors is an integer number (3168290887296).

Almost surely, 2^{28646630105534} is an apocalyptic number.

28646630105534 is a deficient number, since it is larger than the sum of its proper divisors (22046024091202).

28646630105534 is a wasteful number, since it uses less digits than its factorization.

28646630105534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66006060191.

The product of its (nonzero) digits is 12441600, while the sum is 53.

The spelling of 28646630105534 in words is "twenty-eight trillion, six hundred forty-six billion, six hundred thirty million, one hundred five thousand, five hundred thirty-four".